- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202107-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: glibc: Multiple vulnerabilities Date: July 06, 2021 Bugs: #764176, #767718, #772425, #792261 ID: 202107-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities in glibc could result in Denial of Service. Background ========== glibc is a package that contains the GNU C library. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-libs/glibc < 2.33-r1 >= 2.33-r1 Description =========== Multiple vulnerabilities have been discovered in glibc. Please review the CVE identifiers referenced below for details. Impact ====== An attacker could cause a possible Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All glibc users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.33-r1" References ========== [ 1 ] CVE-2019-25013 https://nvd.nist.gov/vuln/detail/CVE-2019-25013 [ 2 ] CVE-2020-27618 https://nvd.nist.gov/vuln/detail/CVE-2020-27618 [ 3 ] CVE-2021-27645 https://nvd.nist.gov/vuln/detail/CVE-2021-27645 [ 4 ] CVE-2021-3326 https://nvd.nist.gov/vuln/detail/CVE-2021-3326 [ 5 ] CVE-2021-33574 https://nvd.nist.gov/vuln/detail/CVE-2021-33574 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202107-07 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 2021 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