ID

VAR-202012-1279

CVE

CVE-2020-8286

TITLE

HAXX libcurl Trust Management Issue Vulnerability

DESCRIPTION

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response. HAXX libcurl is an open source client-side URL transfer library developed by Haxx (HAXX) in Sweden. The product supports protocols such as FTP, SFTP, TFTP and HTTP. A security vulnerability exists in libcurl that could be exploited by an attacker to read or write data in a session by acting as a man-in-the-middle through low-level OCSP authentication on libcurl. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-4881-1 security@debian.org https://www.debian.org/security/ Alessandro Ghedini March 30, 2021 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : curl CVE ID : CVE-2020-8169 CVE-2020-8177 CVE-2020-8231 CVE-2020-8284 CVE-2020-8285 CVE-2020-8286 CVE-2021-22876 CVE-2021-22890 Debian Bug : 965280 965281 968831 977161 977162 977163 Multiple vulnerabilities were discovered in cURL, an URL transfer library: CVE-2020-8169 Marek Szlagor reported that libcurl could be tricked into prepending a part of the password to the host name before it resolves it, potentially leaking the partial password over the network and to the DNS server(s). CVE-2020-8177 sn reported that curl could be tricked by a malicious server into overwriting a local file when using th -J (--remote-header-name) and -i (--include) options in the same command line. CVE-2020-8231 Marc Aldorasi reported that libcurl might use the wrong connection when an application using libcurl's multi API sets the option CURLOPT_CONNECT_ONLY, which could lead to information leaks. CVE-2020-8284 Varnavas Papaioannou reported that a malicious server could use the PASV response to trick curl into connecting back to an arbitrary IP address and port, potentially making curl extract information about services that are otherwise private and not disclosed. CVE-2020-8285 xnynx reported that libcurl could run out of stack space when using tha FTP wildcard matching functionality (CURLOPT_CHUNK_BGN_FUNCTION). CVE-2020-8286 It was reported that libcurl didn't verify that an OCSP response actually matches the certificate it is intended to. CVE-2021-22876 Viktor Szakats reported that libcurl does not strip off user credentials from the URL when automatically populating the Referer HTTP request header field in outgoing HTTP requests. CVE-2021-22890 Mingtao Yang reported that, when using an HTTPS proxy and TLS 1.3, libcurl could confuse session tickets arriving from the HTTPS proxy as if they arrived from the remote server instead. This could allow an HTTPS proxy to trick libcurl into using the wrong session ticket for the host and thereby circumvent the server TLS certificate check. For the stable distribution (buster), these problems have been fixed in version 7.64.0-4+deb10u2. We recommend that you upgrade your curl packages. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: Red Hat OpenShift Container Storage 4.6.5 security and bug fix update Advisory ID: RHSA-2021:2479-01 Product: Red Hat OpenShift Container Storage Advisory URL: https://access.redhat.com/errata/RHSA-2021:2479 Issue date: 2021-06-17 CVE Names: CVE-2016-10228 CVE-2017-14502 CVE-2019-2708 CVE-2019-3842 CVE-2019-9169 CVE-2019-13012 CVE-2019-14866 CVE-2019-25013 CVE-2020-8231 CVE-2020-8284 CVE-2020-8285 CVE-2020-8286 CVE-2020-8927 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2020-13434 CVE-2020-13543 CVE-2020-13584 CVE-2020-13776 CVE-2020-15358 CVE-2020-24977 CVE-2020-25659 CVE-2020-25678 CVE-2020-26116 CVE-2020-26137 CVE-2020-27618 CVE-2020-27619 CVE-2020-27783 CVE-2020-28196 CVE-2020-29361 CVE-2020-29362 CVE-2020-29363 CVE-2020-36242 CVE-2021-3139 CVE-2021-3177 CVE-2021-3326 CVE-2021-3449 CVE-2021-3450 CVE-2021-3528 CVE-2021-20305 CVE-2021-23239 CVE-2021-23240 CVE-2021-23336 ==================================================================== 1. Summary: Updated images that fix one security issue and several bugs are now available for Red Hat OpenShift Container Storage 4.6.5 on Red Hat Enterprise Linux 8 from Red Hat Container Registry. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Description: Red Hat OpenShift Container Storage is software-defined storage integrated with and optimized for the Red Hat OpenShift Container Platform. Red Hat OpenShift Container Storage is a highly scalable, production-grade persistent storage for stateful applications running in the Red Hat OpenShift Container Platform. In addition to persistent storage, Red Hat OpenShift Container Storage provisions a multicloud data management service with an S3 compatible API. Security Fix(es): * NooBaa: noobaa-operator leaking RPC AuthToken into log files (CVE-2021-3528) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Currently, a newly restored PVC cannot be mounted if some of the OpenShift Container Platform nodes are running on a version of Red Hat Enterprise Linux which is less than 8.2, and the snapshot from which the PVC was restored is deleted. Workaround: Do not delete the snapshot from which the PVC was restored until the restored PVC is deleted. (BZ#1962483) * Previously, the default backingstore was not created on AWS S3 when OpenShift Container Storage was deployed, due to incorrect identification of AWS S3. With this update, the default backingstore gets created when OpenShift Container Storage is deployed on AWS S3. (BZ#1927307) * Previously, log messages were printed to the endpoint pod log even if the debug option was not set. With this update, the log messages are printed to the endpoint pod log only when the debug option is set. (BZ#1938106) * Previously, the PVCs could not be provisioned as the `rook-ceph-mds` did not register the pod IP on the monitor servers, and hence every mount on the filesystem timed out, resulting in CephFS volume provisioning failure. With this update, an argument `--public-addr=podIP` is added to the MDS pod when the host network is not enabled, and hence the CephFS volume provisioning does not fail. (BZ#1949558) * Previously, OpenShift Container Storage 4.2 clusters were not updated with the correct cache value, and hence MDSs in standby-replay might report an oversized cache, as rook did not apply the `mds_cache_memory_limit` argument during upgrades. With this update, the `mds_cache_memory_limit` argument is applied during upgrades and the mds daemon operates normally. (BZ#1951348) * Previously, the coredumps were not generated in the correct location as rook was setting the config option `log_file` to an empty string since logging happened on stdout and not on the files, and hence Ceph read the value of the `log_file` to build the dump path. With this update, rook does not set the `log_file` and keeps Ceph's internal default, and hence the coredumps are generated in the correct location and are accessible under `/var/log/ceph/`. (BZ#1938049) * Previously, Ceph became inaccessible, as the mons lose quorum if a mon pod was drained while another mon was failing over. With this update, voluntary mon drains are prevented while a mon is failing over, and hence Ceph does not become inaccessible. (BZ#1946573) * Previously, the mon quorum was at risk, as the operator could erroneously remove the new mon if the operator was restarted during a mon failover. With this update, the operator completes the same mon failover after the operator is restarted, and hence the mon quorum is more reliable in the node drains and mon failover scenarios. (BZ#1959983) All users of Red Hat OpenShift Container Storage are advised to pull these new images from the Red Hat Container Registry. 3. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 4. Bugs fixed (https://bugzilla.redhat.com/): 1938106 - [GSS][RFE]Reduce debug level for logs of Nooba Endpoint pod 1950915 - XSS Vulnerability with Noobaa version 5.5.0-3bacc6b 1951348 - [GSS][CephFS] health warning "MDS cache is too large (3GB/1GB); 0 inodes in use by clients, 0 stray files" for the standby-replay 1951600 - [4.6.z][Clone of BZ #1936545] setuid and setgid file bits are not retained after a OCS CephFS CSI restore 1955601 - CVE-2021-3528 NooBaa: noobaa-operator leaking RPC AuthToken into log files 1957189 - [Rebase] Use RHCS4.2z1 container image with OCS 4..6.5[may require doc update for external mode min supported RHCS version] 1959980 - When a node is being drained, increase the mon failover timeout to prevent unnecessary mon failover 1959983 - [GSS][mon] rook-operator scales mons to 4 after healthCheck timeout 1962483 - [RHEL7][RBD][4.6.z clone] FailedMount error when using restored PVC on app pod 5. References: https://access.redhat.com/security/cve/CVE-2016-10228 https://access.redhat.com/security/cve/CVE-2017-14502 https://access.redhat.com/security/cve/CVE-2019-2708 https://access.redhat.com/security/cve/CVE-2019-3842 https://access.redhat.com/security/cve/CVE-2019-9169 https://access.redhat.com/security/cve/CVE-2019-13012 https://access.redhat.com/security/cve/CVE-2019-14866 https://access.redhat.com/security/cve/CVE-2019-25013 https://access.redhat.com/security/cve/CVE-2020-8231 https://access.redhat.com/security/cve/CVE-2020-8284 https://access.redhat.com/security/cve/CVE-2020-8285 https://access.redhat.com/security/cve/CVE-2020-8286 https://access.redhat.com/security/cve/CVE-2020-8927 https://access.redhat.com/security/cve/CVE-2020-9948 https://access.redhat.com/security/cve/CVE-2020-9951 https://access.redhat.com/security/cve/CVE-2020-9983 https://access.redhat.com/security/cve/CVE-2020-13434 https://access.redhat.com/security/cve/CVE-2020-13543 https://access.redhat.com/security/cve/CVE-2020-13584 https://access.redhat.com/security/cve/CVE-2020-13776 https://access.redhat.com/security/cve/CVE-2020-15358 https://access.redhat.com/security/cve/CVE-2020-24977 https://access.redhat.com/security/cve/CVE-2020-25659 https://access.redhat.com/security/cve/CVE-2020-25678 https://access.redhat.com/security/cve/CVE-2020-26116 https://access.redhat.com/security/cve/CVE-2020-26137 https://access.redhat.com/security/cve/CVE-2020-27618 https://access.redhat.com/security/cve/CVE-2020-27619 https://access.redhat.com/security/cve/CVE-2020-27783 https://access.redhat.com/security/cve/CVE-2020-28196 https://access.redhat.com/security/cve/CVE-2020-29361 https://access.redhat.com/security/cve/CVE-2020-29362 https://access.redhat.com/security/cve/CVE-2020-29363 https://access.redhat.com/security/cve/CVE-2020-36242 https://access.redhat.com/security/cve/CVE-2021-3139 https://access.redhat.com/security/cve/CVE-2021-3177 https://access.redhat.com/security/cve/CVE-2021-3326 https://access.redhat.com/security/cve/CVE-2021-3449 https://access.redhat.com/security/cve/CVE-2021-3450 https://access.redhat.com/security/cve/CVE-2021-3528 https://access.redhat.com/security/cve/CVE-2021-20305 https://access.redhat.com/security/cve/CVE-2021-23239 https://access.redhat.com/security/cve/CVE-2021-23240 https://access.redhat.com/security/cve/CVE-2021-23336 https://access.redhat.com/security/updates/classification/#moderate 6. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYMtu/9zjgjWX9erEAQh6fhAAm9UPxF0e8ubzCEae+bkQAduwCkzpQ0ND Q1/UcDAAc4ueEhBrwXPhOLrgfBj+VG+QA19YZcNPzbW7I48RGjCm5WccnUyEbFAo FKTspCZW7FkXKBU15u58c/sFCGa4/Yuu+IpqCMuZ6lR2g9WHIBKdVtaB4y59AyfS v59cAorqZ3AoTX4lVys6HfDGySQWlg5P8t6ST72cUJjESi6U0HV00P7ECU2SFxCF HXA4gbXbZ1EPb/1+UkRRnXemJuT8SaRFRTrzj9woTrVAGQFvn+yjxLbZxVZb0WDd 6QeNpiJNICfL+/ExvEmGQucf7NcekYPWud11pnRUfQ+Uqsj+I7YoaepXAAolLzvN kAVVpFNsWADOVz7BrfSKoo4b38UCFOEUSd2d1ijCNE96Q9XyNUpn+kZqz0/wpBQC L+E5N9kEuaLyDBoI0wJAfoqU1NY4Cvl6lIMDgHUv2CE10zxhFwHCDulAfcQgxNQG sIbpSgSegq9HfZSDxa6Rtrox1I7oGhnBy10sIwUUH1+fxAusUk+Xrxf8hUv8KgDz V144yrGwN/6KVxh74A60bJX3ai12l6fC8bkmsxg5K1r/Dk4tUkQeXNdBbaK/rEKO AQs7YDab/0VA2qKtXDRkbnzqBRSbamDNOO/jd28nGMoclaIRHCzQgJRFv6Qb6dwT RCrstqAM5QQ=DHD0 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Bug Fix(es): * WMCO patch pub-key-hash annotation to Linux node (BZ#1945248) * LoadBalancer Service type with invalid external loadbalancer IP breaks the datapath (BZ#1952917) * Telemetry info not completely available to identify windows nodes (BZ#1955319) * WMCO incorrectly shows node as ready after a failed configuration (BZ#1956412) * kube-proxy service terminated unexpectedly after recreated LB service (BZ#1963263) 3. Solution: For Windows Machine Config Operator upgrades, see the following documentation: https://docs.openshift.com/container-platform/4.7/windows_containers/window s-node-upgrades.html 4. Bugs fixed (https://bugzilla.redhat.com/): 1945248 - WMCO patch pub-key-hash annotation to Linux node 1946538 - CVE-2021-25736 kubernetes: LoadBalancer Service type don't create a HNS policy for empty or invalid external loadbalancer IP, what could lead to MITM 1952917 - LoadBalancer Service type with invalid external loadbalancer IP breaks the datapath 1955319 - Telemetry info not completely available to identify windows nodes 1956412 - WMCO incorrectly shows node as ready after a failed configuration 1963263 - kube-proxy service terminated unexpectedly after recreated LB service 5. Bugs fixed (https://bugzilla.redhat.com/): 1897635 - CVE-2020-28362 golang: math/big: panic during recursive division of very large numbers 1918750 - CVE-2021-3114 golang: crypto/elliptic: incorrect operations on the P-224 curve 5. JIRA issues fixed (https://issues.jboss.org/): TRACING-1725 - Elasticsearch operator reports x509 errors communicating with ElasticSearch in OpenShift Service Mesh project 6. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-04-26-4 Security Update 2021-003 Mojave Security Update 2021-003 Mojave addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212327. APFS Available for: macOS Mojave Impact: A local user may be able to read arbitrary files Description: The issue was addressed with improved permissions logic. CVE-2021-1797: Thomas Tempelmann Audio Available for: macOS Mojave Impact: An application may be able to read restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1808: JunDong Xie of Ant Security Light-Year Lab CFNetwork Available for: macOS Mojave Impact: Processing maliciously crafted web content may disclose sensitive user information Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1857: an anonymous researcher CoreAudio Available for: macOS Mojave Impact: A malicious application may be able to read restricted memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1809: JunDong Xie of Ant Security Light-Year Lab CoreGraphics Available for: macOS Mojave Impact: Opening a maliciously crafted file may lead to unexpected application termination or arbitrary code execution Description: A memory corruption issue was addressed with improved validation. CVE-2021-1847: Xuwei Liu of Purdue University CoreText Available for: macOS Mojave Impact: Processing a maliciously crafted font may result in the disclosure of process memory Description: A logic issue was addressed with improved state management. CVE-2021-1811: Xingwei Lin of Ant Security Light-Year Lab curl Available for: macOS Mojave Impact: A remote attacker may be able to cause a denial of service Description: A buffer overflow was addressed with improved input validation. CVE-2020-8285: xnynx curl Available for: macOS Mojave Impact: An attacker may provide a fraudulent OCSP response that would appear valid Description: This issue was addressed with improved checks. CVE-2020-8286: an anonymous researcher DiskArbitration Available for: macOS Mojave Impact: A malicious application may be able to modify protected parts of the file system Description: A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. CVE-2021-1784: Csaba Fitzl (@theevilbit) of Offensive Security, an anonymous researcher, and Mikko Kenttälä (@Turmio_) of SensorFu FontParser Available for: macOS Mojave Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1881: Hou JingYi (@hjy79425575) of Qihoo 360, an anonymous researcher, Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin of Trend Micro FontParser Available for: macOS Mojave Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A logic issue was addressed with improved state management. CVE-2020-27942: an anonymous researcher Foundation Available for: macOS Mojave Impact: A malicious application may be able to gain root privileges Description: A validation issue was addressed with improved logic. CVE-2021-1813: Cees Elzinga ImageIO Available for: macOS Mojave Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: This issue was addressed with improved checks. CVE-2021-1843: Ye Zhang of Baidu Security Intel Graphics Driver Available for: macOS Mojave Impact: An application may be able to execute arbitrary code with kernel privileges Description: An out-of-bounds write was addressed with improved input validation. CVE-2021-1805: ABC Research s.r.o. working with Trend Micro Zero Day Initiative Intel Graphics Driver Available for: macOS Mojave Impact: An application may be able to execute arbitrary code with kernel privileges Description: A race condition was addressed with additional validation. CVE-2021-1806: ABC Research s.r.o. working with Trend Micro Zero Day Initiative Intel Graphics Driver Available for: macOS Mojave Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2021-1834: ABC Research s.r.o. working with Trend Micro Zero Day Initiative Kernel Available for: macOS Mojave Impact: A malicious application may be able to disclose kernel memory Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1860: @0xalsr Kernel Available for: macOS Mojave Impact: An application may be able to execute arbitrary code with kernel privileges Description: A logic issue was addressed with improved state management. CVE-2021-1851: @0xalsr Kernel Available for: macOS Mojave Impact: A local attacker may be able to elevate their privileges Description: A memory corruption issue was addressed with improved validation. CVE-2021-1840: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab libxpc Available for: macOS Mojave Impact: A malicious application may be able to gain root privileges Description: A race condition was addressed with additional validation. CVE-2021-30652: James Hutchins libxslt Available for: macOS Mojave Impact: Processing a maliciously crafted file may lead to heap corruption Description: A double free issue was addressed with improved memory management. CVE-2021-1875: Found by OSS-Fuzz NSRemoteView Available for: macOS Mojave Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2021-1876: Matthew Denton of Google Chrome Preferences Available for: macOS Mojave Impact: A local user may be able to modify protected parts of the file system Description: A parsing issue in the handling of directory paths was addressed with improved path validation. CVE-2021-1739: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com) smbx Available for: macOS Mojave Impact: An attacker in a privileged network position may be able to leak sensitive user information Description: An integer overflow was addressed with improved input validation. CVE-2021-1878: Aleksandar Nikolic of Cisco Talos (talosintelligence.com) Tailspin Available for: macOS Mojave Impact: A local attacker may be able to elevate their privileges Description: A logic issue was addressed with improved state management. CVE-2021-1868: Tim Michaud of Zoom Communications tcpdump Available for: macOS Mojave Impact: A remote attacker may be able to cause a denial of service Description: This issue was addressed with improved checks. CVE-2020-8037: an anonymous researcher Time Machine Available for: macOS Mojave Impact: A local attacker may be able to elevate their privileges Description: The issue was addressed with improved permissions logic. CVE-2021-1839: Tim Michaud(@TimGMichaud) of Zoom Video Communications and Gary Nield of ECSC Group plc Wi-Fi Available for: macOS Mojave Impact: An application may be able to cause unexpected system termination or write kernel memory Description: A memory corruption issue was addressed with improved validation. CVE-2021-1828: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab wifivelocityd Available for: macOS Mojave Impact: An application may be able to execute arbitrary code with system privileges Description: The issue was addressed with improved permissions logic. CVE-2020-3838: Dayton Pidhirney (@_watbulb) Windows Server Available for: macOS Mojave Impact: A malicious application may be able to unexpectedly leak a user's credentials from secure text fields Description: An API issue in Accessibility TCC permissions was addressed with improved state management. CVE-2021-1873: an anonymous researcher Installation note: This update may be obtained from the Mac App Store or Apple's Software Downloads web site: https://support.apple.com/downloads/ Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEbURczHs1TP07VIfuZcsbuWJ6jjAFAmCHO2EACgkQZcsbuWJ6 jjBHBhAAmHYbcREaaxOXQwrb56He+ool1GyXUCGknHRnEO6Ik0nyE/GeUPuv8Y/Q /ywr188mv3ehtjFlXWpHtqwOn0KoNlAlcE+jy9r3QGTxNmBM2z30FeC0wiYYEi7s I5xWkZIcnO1jq2CMGVHHfbLhyLnkWblwWvCOWriCRzbTocEWgEqwrh/uguTVRWB4 oVo8+uHcdiS2gqS0LIMbbvP6SGkfPwVlL8Mr/e96xdditiRbZX01GkAm0l5ezYHt xrs8378fmQK3su4dHrkHpFpTmT3Yib8Jtotat8cgu6lWxLGEFR5kOye4QIjFCl/a UhnR52nlMyYlh4anbqUs7PAh2QDVa3scaRfGTdAogPfaZIAhaaiuj8qXUOsAxEhk rf0TOXmgCDfhuaA08Ys43sgUgunPLOa2+jMT4VspLZxDTkWLDrGFjlM4P5643WrT ITAKLoqq8SOhce6gd3VECvG+EK/fBWrdwzsVDzfxU3yW3kSCKxX25KcRePwJZAAu s1ZZpIZdY7rmi1DwafNSig2dncjUZJy6AhiI5w6cpQzBOQVioU8oac2JDi1X2Rn1 k/D3VQfmYas7HGqUSwx3MUx+yybktm+8Ogo+vtcRKCzUF5t13bwpyAda0mJ62c6L I/ISWomRdC4XX3AQL5EJLzO9slpOBqWsbQb0cULdt+mb4H+nLDE= =NZ77 -----END PGP SIGNATURE----- . Security Fix(es): * golang: crypto/tls: certificate of wrong type is causing TLS client to panic (CVE-2021-34558) * golang: net: lookup functions may return invalid host names (CVE-2021-33195) * golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty (CVE-2021-33197) * golang: match/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents (CVE-2021-33198) * golang: encoding/xml: infinite loop when using xml.NewTokenDecoder with a custom TokenReader (CVE-2021-27918) * golang: net/http: panic in ReadRequest and ReadResponse when reading a very large header (CVE-2021-31525) * golang: archive/zip: malformed archive may cause panic or memory exhaustion (CVE-2021-33196) It was found that the CVE-2021-27918, CVE-2021-31525 and CVE-2021-33196 have been incorrectly mentioned as fixed in RHSA for Serverless client kn 1.16.0. This has been fixed (CVE-2021-3703). Bugs fixed (https://bugzilla.redhat.com/): 1983596 - CVE-2021-34558 golang: crypto/tls: certificate of wrong type is causing TLS client to panic 1983651 - Release of OpenShift Serverless Serving 1.17.0 1983654 - Release of OpenShift Serverless Eventing 1.17.0 1989564 - CVE-2021-33195 golang: net: lookup functions may return invalid host names 1989570 - CVE-2021-33197 golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty 1989575 - CVE-2021-33198 golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents 1992955 - CVE-2021-3703 serverless: incomplete fix for CVE-2021-27918 / CVE-2021-31525 / CVE-2021-33196 5

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

trust management problem

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2026-02-07T23:11:14.802000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE