National Cyber Awareness System

Vulnerability Summary for CVE-2012-2673

Overview

Multiple integer overflows in the (1) GC_generic_malloc and (2) calloc funtions in malloc.c, and the (3) GC_generic_malloc_ignore_off_page function in mallocx.c in Boehm-Demers-Weiser GC (libgc) before 7.2 make it easier for context-dependent attackers to perform memory-related attacks such as buffer overflows via a large size value, which causes less memory to be allocated than expected.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://github.com/ivmai/bdwgc/commit/e10c1eb9908c2774c16b3148b30d2f3823d66a9a

Type: Patch Information

Hyperlink:https://github.com/ivmai/bdwgc/commit/e10c1eb9908c2774c16b3148b30d2f3823d66a9a

External Source: CONFIRM

Name: https://github.com/ivmai/bdwgc/commit/be9df82919960214ee4b9d3313523bff44fd99e1

Type: Patch Information

Hyperlink:https://github.com/ivmai/bdwgc/commit/be9df82919960214ee4b9d3313523bff44fd99e1

External Source: CONFIRM

Name: https://github.com/ivmai/bdwgc/commit/83231d0ab5ed60015797c3d1ad9056295ac3b2bb

Type: Patch Information; Exploit

Hyperlink:https://github.com/ivmai/bdwgc/commit/83231d0ab5ed60015797c3d1ad9056295ac3b2bb

External Source: CONFIRM

Name: https://github.com/ivmai/bdwgc/commit/6a93f8e5bcad22137f41b6c60a1c7384baaec2b3

Type: Patch Information; Exploit

Hyperlink:https://github.com/ivmai/bdwgc/commit/6a93f8e5bcad22137f41b6c60a1c7384baaec2b3

External Source: CONFIRM

Name: https://github.com/ivmai/bdwgc/blob/master/ChangeLog

Hyperlink:https://github.com/ivmai/bdwgc/blob/master/ChangeLog

External Source: UBUNTU

Name: USN-1546-1

Hyperlink:http://www.ubuntu.com/usn/USN-1546-1

External Source: BID

Name: 54227

Hyperlink:http://www.securityfocus.com/bid/54227

External Source: MLIST

Name: [oss-security] 20120607 Re: memory allocator upstream patches

Hyperlink:http://www.openwall.com/lists/oss-security/2012/06/07/13

External Source: MLIST

Name: [oss-security] 20120605 memory allocator upstream patches

Hyperlink:http://www.openwall.com/lists/oss-security/2012/06/05/1

External Source: MANDRIVA

Name: MDVSA-2012:158

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2012:158

External Source: FEDORA

Name: FEDORA-2012-9637

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082988.html

External Source: FEDORA

Name: FEDORA-2012-9556

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082926.html

External Source: MISC

Name: http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/

Hyperlink:http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/