Description
Integer overflow vulnerability in bdwgc before 2016-09-27 allows attackers to cause client of bdwgc denial of service (heap buffer overflow crash) and possibly execute arbitrary code via huge allocation.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libgc | 1:7.6.4-0.3 | — |
| Debian 13 | libgc | 1:7.6.4-0.3 | — |
| Debian 12 | libgc | 1:7.6.4-0.3 | — |
| Debian 9 | libgc | 1:7.4.2-8+deb9u1 | DLA-2966-1 |
| Debian 7 | libgc | 1:7.1-9.1+deb7u1 | DLA-721-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libgc | 1:7.4.2-7.3ubuntu0.1 | USN-3197-1 |
| Ubuntu 14.04 LTS | libgc | 1:7.2d-5ubuntu2.1 | USN-3197-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | gc | 7.2d-5.1 | SUSE-SU-2016:3057-1 |
| SLES 12 SP1 | gc | 7.2d-5.1 | SUSE-SU-2016:3057-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | gc | 7.2d-5.1 | SUSE-SU-2016:3057-1 |
| SLES for SAP 12 SP1 | gc | 7.2d-5.1 | SUSE-SU-2016:3057-1 |
Advisories 4
- USN-3197-1 libgc vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-721-1 libgc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2966-1 libgc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:3057-1 Security update for gc SUSE / openSUSE Security Updates · Feb 4, 2026
References
- openSUSE-SU-2016:3126 vendor-advisory
- https://github.com/ivmai/bdwgc/issues/135
- 94407 vdb-entry
- openSUSE-SU-2016:3177 vendor-advisory
- [oss-security] 20161118 Re: CVE request: w3m - multiple vulnerabilities mailing-list
- [debian-lts-announce] 20220330 [SECURITY] [DLA 2966-1] libgc security update mailing-list