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CVE-2013-2207

Status Candidate

Overview

pt_chown in GNU C Library (aka glibc or libc6) before 2.18 does not properly check permissions for tty files, which allows local users to change the permission on the files and obtain access to arbitrary pseudo-terminals by leveraging a FUSE file system.

Related Files

Ubuntu Security Notice USN-2985-1
Posted May 26, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2985-1 - Martin Carpenter discovered that pt_chown in the GNU C Library did not properly check permissions for tty files. A local attacker could use this to gain administrative privileges or expose sensitive information. Robin Hack discovered that the Name Service Switch (NSS) implementation in the GNU C Library did not properly manage its file descriptors. An attacker could use this to cause a denial of service (infinite loop). Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2013-2207, CVE-2014-8121, CVE-2014-9761, CVE-2015-1781, CVE-2015-5277, CVE-2015-8776, CVE-2015-8777, CVE-2015-8778, CVE-2015-8779, CVE-2016-2856, CVE-2016-3075
MD5 | 3f2df4217b9adccdba110c883117f6d0
Gentoo Linux Security Advisory 201503-04
Posted Mar 9, 2015
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201503-4 - Multiple vulnerabilities have been found in GNU C Library, the worst of which allowing a local attacker to execute arbitrary code or cause a Denial of Service. Versions less than 2.19-r1 are affected.

tags | advisory, denial of service, arbitrary, local, vulnerability
systems | linux, gentoo
advisories | CVE-2012-3404, CVE-2012-3405, CVE-2012-3406, CVE-2012-3480, CVE-2012-4412, CVE-2012-4424, CVE-2012-6656, CVE-2013-0242, CVE-2013-1914, CVE-2013-2207, CVE-2013-4237, CVE-2013-4332, CVE-2013-4458, CVE-2013-4788, CVE-2014-4043, CVE-2015-0235
MD5 | f85fc2ac92288c38034eb6f805166308
Mandriva Linux Security Advisory 2013-283
Posted Nov 25, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-283 - Updated glibc packages fix multiple security issues. Integer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier allows context-dependent attackers to cause a denial of service or possibly execute arbitrary code via a long string, which triggers a heap-based buffer overflow. Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library 2.17 and earlier allows context-dependent attackers to cause a denial of service or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function. pt_chown in GNU C Library before 2.18 does not properly check permissions for tty files, which allows local users to change the permission on the files and obtain access to arbitrary pseudo-terminals by leveraging a FUSE file system. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, local
systems | linux, mandriva
advisories | CVE-2012-4412, CVE-2012-4424, CVE-2013-2207, CVE-2013-4237, CVE-2013-4332, CVE-2013-4458, CVE-2013-4788
MD5 | 00c15430c48c02c8fc0e9a33edb3e18e
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