gc: malloc() and calloc() overflows
Published Jul 25, 2012
5.0
MEDIUMCVSS 2.0
EPSS 2.77%
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
No data.
- ≤ 7.2
- 1.3
- 1.4
- 1.5
- 1.8
- 1.9
- 2.0
- 2.1
- 2.2
- 2.3
- 2.4
- 3.0
- 3.1
- 3.2
- 3.3
- 3.4
- 3.5
- 3.6
- 3.7
- 4.0
- 4.1
- 4.2
- 4.3
- 4.4
- 4.5
- 4.6
- 4.7
- 4.8
- 4.9
- 4.10
- 4.11
- 4.12
- 4.13
- 4.14
- 4.14
- 4.14
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.0
- 5.1
- 5.2
- 5.3
- 5.4
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.0
- 6.1
- 6.1
- 6.1
- 6.1
- 6.1
- 6.1
- 6.2
- 6.2
- 6.2
- 6.2
- 6.2
- 6.2
- 6.2
- 6.3
- 6.3
- 6.3
- 6.3
- 6.3
- 6.3
- 6.3
- 6.4
- 6.5
- 6.6
- 6.7
- 6.8
- 6.9
- 7.0
- 7.0
- 7.0
- 7.0
- 7.0
- 7.0
- 7.0
- 7.0
- 7.1
- 7.1
- 7.2
- 7.2
No data.
Red Hat Enterprise Linux 6
gc-0:7.1-12.el6_4
Fixed · RHSA-2013:1500
Red Hat Satellite 5.6
gc-0:7.1-12.2.el5sat
Fixed · RHSA-2014:0149
Red Hat Satellite Proxy v 5.6
gc-0:7.1-12.2.el5sat
Fixed · RHSA-2014:0150
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | gc-0:7.1-12.el6_4 | Fixed | RHSA-2013:1500 |
| Red Hat Satellite 5.6 | gc-0:7.1-12.2.el5sat | Fixed | RHSA-2014:0149 |
| Red Hat Satellite Proxy v 5.6 | gc-0:7.1-12.2.el5sat | Fixed | RHSA-2014:0150 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.77% (0.02766) | 85.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.77% (0.02766) | 84.35th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.60% (0.01601) | 80.02th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.04% (0.03045) | 77.73th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.60% (0.01601) | 80.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.72% (0.00721) | 81.26th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.71% (0.00710) | 79.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.71% (0.00710) | 77.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (20)
- http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/ x_refsource_MISC
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082926.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082988.html vendor-advisoryx_refsource_FEDORA
- http://rhn.redhat.com/errata/RHSA-2013-1500.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0149.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0150.html vendor-advisoryx_refsource_REDHAT
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:158 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2012/06/05/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/06/07/13 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/54227 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1546-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-2673 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=828878 Issue Tracking
- https://github.com/ivmai/bdwgc/blob/master/ChangeLog x_refsource_CONFIRM
- https://github.com/ivmai/bdwgc/commit/6a93f8e5bcad22137f41b6c60a1c7384baaec2b3 x_refsource_CONFIRMExploitPatch
- https://github.com/ivmai/bdwgc/commit/83231d0ab5ed60015797c3d1ad9056295ac3b2bb x_refsource_CONFIRMExploitPatch
- https://github.com/ivmai/bdwgc/commit/be9df82919960214ee4b9d3313523bff44fd99e1 x_refsource_CONFIRMPatch
- https://github.com/ivmai/bdwgc/commit/e10c1eb9908c2774c16b3148b30d2f3823d66a9a x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2012-2673
- https://www.cve.org/CVERecord?id=CVE-2012-2673
Change history (0)
No recorded changes yet.