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. For the detailed security status of curl please refer to its security tracker page at: https://security-tracker.debian.org/tracker/curl Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEBsId305pBx+F583DbwzL4CFiRygFAmBkQCoACgkQbwzL4CFi Ryg6Gg/+LqhhJ8+D7skevVkYzxHzdH2yT/XMeoYp0D37yHmEfH9PyjXwfplG+XEw /xwFRBK8qxD1ja+rQddYyeTvi1OMnMgMS3UsRHlfeMnLxh2+oHnvHDYG848npUEZ Rq4YFoc/n9YTAJZP/G4oiuBeXqH2Sqa5hSNT6VrYfRciCxkYnzA78b85KpI8aYyR lhfiJMNpwrqDbt/QzblpELBkGMIV402VeiqDwHfcVzm2E810xXQNLvPMbWtvDYkA TSrNsdqfuFr1tuQSZY6CGSWEyXtB/tOo8+pvUixlJMBWJMl5TXEcJkD5ckehx0yb C3n9yapfklxHiG9lD4zwwIJDqd3Y4SxdDiSlUC4OhdvpwniMygX0S3ICaPA4iac/ cWanml0Fop3OmRy+vQURTd3sADoT5HoRSUXZVU+HdTrRaEt2xs5okZkWSd3yr4Ux i+HgjUAFkkk8DLRB68Bbpx1LGxFGQT7L8yd4wsWINXlzASIP1A5dnNfE5w0VWOHG 3KDq47wNfjuiZC8GXW+HQCxz5MijnS8Y/Egl0OozNFDwEitNBZEsIjpZaZBdZIwi UFfcK7+u/y/TRY54rA4erkdcHFwpYW5EZVGdb7Z+WPWVlzw0ImXrM68LSAhHQaqW 1Hx4VwwwTsMIPnrx2kriRiiDPOW1r5Kip3yHa+QZLedSRGibQWk= =001T -----END PGP SIGNATURE----- . Bugs fixed (https://bugzilla.redhat.com/): 1918750 - CVE-2021-3114 golang: crypto/elliptic: incorrect operations on the P-224 curve 1945703 - "Guest OS Info" availability in VMI describe is flaky 1958816 - [2.6.z] KubeMacPool fails to start due to OOM likely caused by a high number of Pods running in the cluster 1963275 - migration controller null pointer dereference 1965099 - Live Migration double handoff to virt-handler causes connection failures 1965181 - CDI importer doesn't report AwaitingVDDK like it used to 1967086 - Cloning DataVolumes between namespaces fails while creating cdi-upload pod 1967887 - [2.6.6] nmstate is not progressing on a node and not configuring vlan filtering that causes an outage for VMs 1969756 - Windows VMs fail to start on air-gapped environments 1970372 - Virt-handler fails to verify container-disk 1973227 - segfault in virt-controller during pdb deletion 1974084 - 2.6.6 containers 1975212 - No Virtual Machine Templates Found [EDIT - all templates are marked as depracted] 1975727 - [Regression][VMIO][Warm] The third precopy does not end in warm migration 1977756 - [2.6.z] PVC keeps in pending when using hostpath-provisioner 1982760 - [v2v] no kind VirtualMachine is registered for version \"kubevirt.io/v1\" i... 1986989 - OpenShift Virtualization 2.6.z cannot be upgraded to 4.8.0 initially deployed starting with <= 4.8 5. Solution: For OpenShift Container Platform 4.7 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this errata update: https://docs.openshift.com/container-platform/4.7/release_notes/ocp-4-7-rel ease-notes.html For Red Hat OpenShift Logging 5.0, see the following instructions to apply this update: https://docs.openshift.com/container-platform/4.7/logging/cluster-logging-u pgrading.html 4. Bugs fixed (https://bugzilla.redhat.com/): 1921650 - CVE-2021-3121 gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation 5. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP8 security update Advisory ID: RHSA-2021:2471-01 Product: Red Hat JBoss Core Services Advisory URL: https://access.redhat.com/errata/RHSA-2021:2471 Issue date: 2021-06-17 CVE Names: CVE-2020-8169 CVE-2020-8284 CVE-2020-8285 CVE-2020-8286 CVE-2021-22876 CVE-2021-22890 CVE-2021-22901 CVE-2021-31618 ===================================================================== 1. Summary: Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 8 zip release for RHEL 7, RHEL 8 and Microsoft Windows is available. Red Hat Product Security has rated this update as having a security impact of Important. 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 JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 8 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 7 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release. Security Fix(es): * curl: Use-after-free in TLS session handling when using OpenSSL TLS backend (CVE-2021-22901) * httpd: NULL pointer dereference on specially crafted HTTP/2 request (CVE-2021-31618) * libcurl: partial password leak over DNS on HTTP redirect (CVE-2020-8169) * curl: FTP PASV command response can cause curl to connect to arbitrary host (CVE-2020-8284) * curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used (CVE-2020-8285) * curl: Inferior OCSP verification (CVE-2020-8286) * curl: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876) * curl: TLS 1.3 session ticket mix-up with HTTPS proxy host (CVE-2021-22890) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 3. Solution: Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link for the update. You must be logged in to download the update. 4. Bugs fixed (https://bugzilla.redhat.com/): 1847916 - CVE-2020-8169 libcurl: partial password leak over DNS on HTTP redirect 1902667 - CVE-2020-8284 curl: FTP PASV command response can cause curl to connect to arbitrary host 1902687 - CVE-2020-8285 curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used 1906096 - CVE-2020-8286 curl: Inferior OCSP verification 1941964 - CVE-2021-22876 curl: Leak of authentication credentials in URL via automatic Referer 1941965 - CVE-2021-22890 curl: TLS 1.3 session ticket mix-up with HTTPS proxy host 1963146 - CVE-2021-22901 curl: Use-after-free in TLS session handling when using OpenSSL TLS backend 1968013 - CVE-2021-31618 httpd: NULL pointer dereference on specially crafted HTTP/2 request 5. References: https://access.redhat.com/security/cve/CVE-2020-8169 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-2021-22876 https://access.redhat.com/security/cve/CVE-2021-22890 https://access.redhat.com/security/cve/CVE-2021-22901 https://access.redhat.com/security/cve/CVE-2021-31618 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.apachehttp&downloadType=securityPatches&version=2.4.37 https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.openssl&downloadType=securityPatches&version=1.1.1g https://access.redhat.com/documentation/en-us/red_hat_jboss_core_services/2.4.37/ 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 iQIVAwUBYMszstzjgjWX9erEAQgW2Q//cZOMa4KOvz7KejR03sHk7m8aMHDRdPDe Ki6PTe99phprmuXNPOCPGFuWDXbdpAlyEx3Elt3Ah+vmpV+K7ThwXGXJkGwb6mol 2xAFvcwxxO6GNsCl8gYW+JTG+5HYLZ/U4q3lgHId9qfzmuRRg0zwOuwZC7y7R6kP 3H1o1WRiIKEA1oHCh3f3OizTrkOcBZsWINsJ2ggW+ZqVeve4PJH55F3JwCJbIuhd kUhe1QQjiANWq4m/+QkTRtIYzahqK+lIubpoU5P+sFosc7ASUGe29ZPC9LsfY4hx 61bSxXbxTv2wcBaUrg/TAxRplQdHRbZe8s8eWhMtDoNHRqujYOiKHUnBgdoY6oLd 3gfAGI3w2NnWRDodGDGXfuDu6hncAukvxqOO/tOnRd2n7/R52ewGCsNKvsf/OHRG 1X7UeD4DJvXiqBNOtPaqOjR3q7xdO5MhYtkvh/8mzvhx5X/CojUWRWmtSdJDhpvQ POl+hJjFqEFTUJk/VGDJ7HsIs5OqeoV0pURP3VvYyBF75xp3aYI8Gfb1wLoqXmp2 iFhSTskqEc42iMvG/Ks5Rb1wQLrJ4RNgxunGofmNQusjgN406aAqvE79a6JUmt/z 7Z6i8Tvy9PGgNtbnalyxbikpA8Qcoxoij2pbIcSNIJXW+mA74QtI3AC4+4m0V90H butyhmDY1nQ= =gsJD -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the updated packages, the httpd daemon will be restarted automatically. Applications using the APR libraries, such as httpd, must be restarted for this update to take effect. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. Security Fix(es): * golang: math/big: panic during recursive division of very large numbers (CVE-2020-28362) * golang: crypto/elliptic: incorrect operations on the P-224 curve (CVE-2021-3114) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 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

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

2026-02-06T22:52:28.562000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE