Vulnerability in Boehm-Demers-Weiser Garbage Collector
CVE-2012-2673
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.028 (85.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Boehm-Demers-Weiser Garbage Collector — versions 1.3, 1.4, 1.5
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2013-1500.html (vendor-advisory)
- www.ubuntu.com/usn/USN-1546-1 (vendor-advisory)
- github.com/ivmai/bdwgc/commit/e10c1eb9908c2774c16b3148b30d2f3823d66a9a (Patch)
- lists.fedoraproject.org/pipermail/package-announce/2012-June/082988.html (vendor-advisory)
- kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/
- www.openwall.com/lists/oss-security/2012/06/05/1 (mailing-list)
- www.openwall.com/lists/oss-security/2012/06/07/13 (mailing-list)
- www.mandriva.com/security/advisories (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2014-0150.html (vendor-advisory)
- github.com/ivmai/bdwgc/commit/83231d0ab5ed60015797c3d1ad9056295ac3b2bb (Exploit, Patch)