- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201801-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: LibXcursor: User-assisted execution of arbitrary code Date: January 07, 2018 Bugs: #639062 ID: 201801-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in LibXcursor might allow remote attackers to execute arbitrary code. Background ========== X.Org X11 libXcursor runtime library. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-libs/libXcursor < 1.1.15 >= 1.1.15 Description =========== It was discovered that libXcursor is prone to several heap overflows when parsing malicious files. Impact ====== A remote attacker, by enticing a user to process a specially crafted cursor file, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All LibXcursor users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-libs/libXcursor-1.1.15" References ========== [ 1 ] CVE-2017-16612 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-16612 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201801-04 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 =======