Description
Multiple integer overflows in the (1) GC_generic_malloc and (2) calloc functions 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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://rhn.redhat.com/errata/RHSA-2013-1500.html ↗
- http://www.ubuntu.com/usn/USN-1546-1 ↗
- https://github.com/ivmai/bdwgc/commit/e10c1eb9908c2774c16b3148b30d2f3823d66a9a ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082988.html ↗
- http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/ ↗
- http://www.openwall.com/lists/oss-security/2012/06/05/1 ↗
- http://www.openwall.com/lists/oss-security/2012/06/07/13 ↗
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:158 ↗
- http://rhn.redhat.com/errata/RHSA-2014-0150.html ↗
- https://github.com/ivmai/bdwgc/commit/83231d0ab5ed60015797c3d1ad9056295ac3b2bb ↗
- https://github.com/ivmai/bdwgc/blob/master/ChangeLog ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082926.html ↗
- https://github.com/ivmai/bdwgc/commit/be9df82919960214ee4b9d3313523bff44fd99e1 ↗
- http://rhn.redhat.com/errata/RHSA-2014-0149.html ↗
- https://github.com/ivmai/bdwgc/commit/6a93f8e5bcad22137f41b6c60a1c7384baaec2b3 ↗
- http://www.securityfocus.com/bid/54227 ↗