ID

VAR-202109-1790

CVE

CVE-2021-22946

TITLE

libcurl Security hole

DESCRIPTION

A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network. A security issue was found in curl prior to 7.79.0. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: rh-dotnet31-curl security update Advisory ID: RHSA-2022:1354-01 Product: .NET Core on Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:1354 Issue date: 2022-04-13 CVE Names: CVE-2021-22876 CVE-2021-22924 CVE-2021-22946 CVE-2021-22947 ==================================================================== 1. Summary: An update for rh-dotnet31-curl is now available for .NET Core on Red Hat Enterprise Linux. 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. Relevant releases/architectures: .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 .NET Core on Red Hat Enterprise Linux Server (v. 7) - x86_64 .NET Core on Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: .NET Core is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. Security Fix(es): * curl: Leak of authentication credentials in URL via automatic Referer (CVE-2021-22876) * curl: Bad connection reuse due to flawed path name checks (CVE-2021-22924) * curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols (CVE-2021-22946) * curl: Server responses received before STARTTLS processed after TLS handshake (CVE-2021-22947) 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. 4. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1941964 - CVE-2021-22876 curl: Leak of authentication credentials in URL via automatic Referer 1981460 - CVE-2021-22924 curl: Bad connection reuse due to flawed path name checks 2003175 - CVE-2021-22946 curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols 2003191 - CVE-2021-22947 curl: Server responses received before STARTTLS processed after TLS handshake 6. Package List: .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7): Source: rh-dotnet31-curl-7.61.1-22.el7_9.src.rpm x86_64: rh-dotnet31-curl-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-curl-debuginfo-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-libcurl-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-libcurl-devel-7.61.1-22.el7_9.x86_64.rpm .NET Core on Red Hat Enterprise Linux Server (v. 7): Source: rh-dotnet31-curl-7.61.1-22.el7_9.src.rpm x86_64: rh-dotnet31-curl-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-curl-debuginfo-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-libcurl-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-libcurl-devel-7.61.1-22.el7_9.x86_64.rpm .NET Core on Red Hat Enterprise Linux Workstation (v. 7): Source: rh-dotnet31-curl-7.61.1-22.el7_9.src.rpm x86_64: rh-dotnet31-curl-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-curl-debuginfo-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-libcurl-7.61.1-22.el7_9.x86_64.rpm rh-dotnet31-libcurl-devel-7.61.1-22.el7_9.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-22876 https://access.redhat.com/security/cve/CVE-2021-22924 https://access.redhat.com/security/cve/CVE-2021-22946 https://access.redhat.com/security/cve/CVE-2021-22947 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYlb3SNzjgjWX9erEAQgpXg/5AT2Nh6ff5mqlZ7dY4dfRgIFgwWOFbvsL 7SHL2ScZJGC2ArXHw9ZpL6XqOZlNm6LGy3V9py4CTEt3lSOl1i3NG4LBKjA7tnea C0l327UhJZqwg1NtZzuhfJTjngxY+09PKNF9X9ULfISZAU0LJlA32VsY/Aw3r2Pu tPx+v+xFKHov+lCT9M75Y7gd0O1McWRwnLF+9E8sVYfkkWp/KMEg4BiuiIax+5lD 9Cs7sgYGct1wDMC+aXbcgM06vCY8nKTwyD67yuFjL+wbHnjcO12Kle9AIzPLQpjU LvzQRqE5/KNhH1BC0jLJwRmFuRH4q/JP8+PRK7/9ABLIl10uj37z9XKpqRj5eBKe tof7/1Fq1DIhDQXoU2TB6SdWwAW/GgLb0tQf1F9KUfgJ+PUQGZED7JzB/jjBZqEy Rh2zDbM8hpCyTBA1bZb/34NyuGG2fypXYkbAda61bWAmn/oV4+P7tV+rGVdQP9GA rlvFPm3sEvT5qHe2pI0du5+Y0yB1PjPMmwYKBlNmhuNFbKgH6dLv8KlKMcbJvu4T dA7yKkZyyxux8W1Reyp0Wzh2wJE5aQfbZm9rzVDJ896AIlO+UzqHXH4XWoFQV1Rz Foj7yKfAJAS/fumVMGd5Z2rpzf8bVjiPltQi+qXFgdyfqpkLxzSKj1tFtWxFW8P4 04zDwrF/odg=o6o+ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202212-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: curl: Multiple Vulnerabilities Date: December 19, 2022 Bugs: #803308, #813270, #841302, #843824, #854708, #867679, #878365 ID: 202212-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Multiple vulnerabilities have been found in curl, the worst of which could result in arbitrary code execution. Background ========= A command line tool and library for transferring data with URLs. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/curl < 7.86.0 >= 7.86.0 Description ========== Multiple vulnerabilities have been discovered in curl. Please review the CVE identifiers referenced below for details. Impact ===== Please review the referenced CVE identifiers for details. Workaround ========= There is no known workaround at this time. Resolution ========= All curl users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/curl-7.86.0" References ========= [ 1 ] CVE-2021-22922 https://nvd.nist.gov/vuln/detail/CVE-2021-22922 [ 2 ] CVE-2021-22923 https://nvd.nist.gov/vuln/detail/CVE-2021-22923 [ 3 ] CVE-2021-22925 https://nvd.nist.gov/vuln/detail/CVE-2021-22925 [ 4 ] CVE-2021-22926 https://nvd.nist.gov/vuln/detail/CVE-2021-22926 [ 5 ] CVE-2021-22945 https://nvd.nist.gov/vuln/detail/CVE-2021-22945 [ 6 ] CVE-2021-22946 https://nvd.nist.gov/vuln/detail/CVE-2021-22946 [ 7 ] CVE-2021-22947 https://nvd.nist.gov/vuln/detail/CVE-2021-22947 [ 8 ] CVE-2022-22576 https://nvd.nist.gov/vuln/detail/CVE-2022-22576 [ 9 ] CVE-2022-27774 https://nvd.nist.gov/vuln/detail/CVE-2022-27774 [ 10 ] CVE-2022-27775 https://nvd.nist.gov/vuln/detail/CVE-2022-27775 [ 11 ] CVE-2022-27776 https://nvd.nist.gov/vuln/detail/CVE-2022-27776 [ 12 ] CVE-2022-27779 https://nvd.nist.gov/vuln/detail/CVE-2022-27779 [ 13 ] CVE-2022-27780 https://nvd.nist.gov/vuln/detail/CVE-2022-27780 [ 14 ] CVE-2022-27781 https://nvd.nist.gov/vuln/detail/CVE-2022-27781 [ 15 ] CVE-2022-27782 https://nvd.nist.gov/vuln/detail/CVE-2022-27782 [ 16 ] CVE-2022-30115 https://nvd.nist.gov/vuln/detail/CVE-2022-30115 [ 17 ] CVE-2022-32205 https://nvd.nist.gov/vuln/detail/CVE-2022-32205 [ 18 ] CVE-2022-32206 https://nvd.nist.gov/vuln/detail/CVE-2022-32206 [ 19 ] CVE-2022-32207 https://nvd.nist.gov/vuln/detail/CVE-2022-32207 [ 20 ] CVE-2022-32208 https://nvd.nist.gov/vuln/detail/CVE-2022-32208 [ 21 ] CVE-2022-32221 https://nvd.nist.gov/vuln/detail/CVE-2022-32221 [ 22 ] CVE-2022-35252 https://nvd.nist.gov/vuln/detail/CVE-2022-35252 [ 23 ] CVE-2022-35260 https://nvd.nist.gov/vuln/detail/CVE-2022-35260 [ 24 ] CVE-2022-42915 https://nvd.nist.gov/vuln/detail/CVE-2022-42915 [ 25 ] CVE-2022-42916 https://nvd.nist.gov/vuln/detail/CVE-2022-42916 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202212-01 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2022 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . 8.2) - aarch64, ppc64le, s390x, x86_64 3. Description: The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. ========================================================================== Ubuntu Security Notice USN-5079-2 September 15, 2021 curl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in curl. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Patrick Monnerat discovered that curl incorrectly handled upgrades to TLS. (CVE-2021-22946) Patrick Monnerat discovered that curl incorrectly handled responses received before STARTTLS. A remote attacker could possibly use this issue to inject responses and intercept communications. (CVE-2021-22947) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: curl 7.47.0-1ubuntu2.19+esm1 libcurl3 7.47.0-1ubuntu2.19+esm1 libcurl3-gnutls 7.47.0-1ubuntu2.19+esm1 libcurl3-nss 7.47.0-1ubuntu2.19+esm1 Ubuntu 14.04 ESM: curl 7.35.0-1ubuntu2.20+esm8 libcurl3 7.35.0-1ubuntu2.20+esm8 libcurl3-gnutls 7.35.0-1ubuntu2.20+esm8 libcurl3-nss 7.35.0-1ubuntu2.20+esm8 In general, a standard system update will make all the necessary changes. Description: OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. Bugs fixed (https://bugzilla.redhat.com/): 1983596 - CVE-2021-34558 golang: crypto/tls: certificate of wrong type is causing TLS client to panic 1992006 - CVE-2021-29923 golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet 1997017 - unprivileged client fails to get guest agent data 1998855 - Node drain: Sometimes source virt-launcher pod status is Failed and not Completed 2000251 - RoleBinding and ClusterRoleBinding brought in by kubevirt does not get reconciled when kind is ServiceAccount 2001270 - [VMIO] [Warm from Vmware] Snapshot files are not deleted after Successful Import 2001281 - [VMIO] [Warm from VMware] Source VM should not be turned ON if vmio import is removed 2001901 - [4.8.3] NNCP creation failures after nmstate-handler pod deletion 2007336 - 4.8.3 containers 2007776 - Failed to Migrate Windows VM with CDROM (readonly) 2008511 - [CNV-4.8.3] VMI is in LiveMigrate loop when Upgrading Cluster from 2.6.7/4.7.32 to OCP 4.8.13 2012890 - With descheduler during multiple VMIs migrations, some VMs are restarted 2025475 - [4.8.3] Upgrade from 2.6 to 4.x versions failed due to vlan-filtering issues 2026881 - [4.8.3] vlan-filtering is getting applied on veth ports 5. Solution: For OpenShift Container Platform 4.8 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/4.8/release_notes/ocp-4-8-release-notes.html For Red Hat OpenShift Logging 5.1, see the following instructions to apply this update: https://docs.openshift.com/container-platform/4.8/logging/cluster-logging-upgrading.html 4. Bugs fixed (https://bugzilla.redhat.com/): 1948761 - CVE-2021-23369 nodejs-handlebars: Remote code execution when compiling untrusted compile templates with strict:true option 1956688 - CVE-2021-23383 nodejs-handlebars: Remote code execution when compiling untrusted compile templates with compat:true option 5. JIRA issues fixed (https://issues.jboss.org/): LOG-1858 - OpenShift Alerting Rules Style-Guide Compliance LOG-1917 - [release-5.1] Fluentd logs emit transaction failed: error_class=NoMethodError while forwarding to external syslog server 6

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

other

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2025-09-26T19:48:28.489000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE