- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201903-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: GNU C Library: Arbitrary descriptor allocation Date: March 14, 2019 Bugs: #617938 ID: 201903-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in the GNU C Library could result in a Denial of Service condition. Background ========== The GNU C library is the standard C library used by Gentoo Linux systems. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-libs/glibc < 2.26.0 >= 2.26.0 Description =========== A vulnerability was discovered in the GNU C Library functions xdr_bytes and xdr_string. Impact ====== A remote attacker, by sending a crafted UDP packet, could cause a Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All GNU C Library users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.26.0" References ========== [ 1 ] CVE-2018-19591 https://nvd.nist.gov/vuln/detail/CVE-2018-19591 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201903-09 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 2019 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