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CVE-2012-4424

Status Candidate

Overview

Stack-based buffer 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 (crash) or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function.

Related Files

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
Slackware Security Advisory - glibc Updates
Posted Oct 24, 2014
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New glibc packages are available for Slackware 14.1 and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2012-4412, CVE-2012-4424, CVE-2013-4237, CVE-2013-4458, CVE-2013-4788, CVE-2014-0475, CVE-2014-4043, CVE-2014-5119, CVE-2014-6040
MD5 | cb4f932fa481526a80b99676e459f3f5
Mandriva Linux Security Advisory 2013-284
Posted Nov 26, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-284 - 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. Multiple integer overflows in malloc/malloc.c in the GNU C Library (aka glibc or libc6) 2.18 and earlier allow context-dependent attackers to cause a denial of service via a large value to the aligned_alloc functions. A stack overflow flaw, which led to a denial of service (application crash), was found in the way glibc's getaddrinfo() function processed certain requests when called with AF_INET6. A similar flaw to this affects AF_INET6 rather than AF_UNSPEC. The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC does not initialize the random value for the pointer guard, which makes it easier for context- dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address. The updated packages have been patched to correct these issues.

tags | advisory, denial of service, overflow, arbitrary
systems | linux, mandriva
advisories | CVE-2012-4412, CVE-2012-4424, CVE-2013-4332, CVE-2013-4458, CVE-2013-4788
MD5 | 116f4babf3860f1480018cd56d34d1af
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
Ubuntu Security Notice USN-1991-1
Posted Oct 21, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1991-1 - It was discovered that the GNU C Library incorrectly handled the strcoll() function. An attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. It was discovered that the GNU C Library incorrectly handled multibyte characters in the regular expression matcher. An attacker could use this issue to cause a denial of service. It was discovered that the GNU C Library incorrectly handled large numbers of domain conversion results in the getaddrinfo() function. An attacker could use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2013-0242, CVE-2013-1914, CVE-2013-4237, CVE-2013-4332, CVE-2012-4412, CVE-2012-4424, CVE-2013-0242, CVE-2013-1914, CVE-2013-4237, CVE-2013-4332
MD5 | 365ebfbdc4def168caafcf58faea1dd9
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