Heap-based buffer overflow in the proxy_connect function in src/client.c in CVS 1.11 and…
Priority MEDIUM 54CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Heap-based buffer overflow in the proxy_connect function in src/client.c in CVS 1.11 and 1.12 allows remote HTTP proxy servers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTTP response.
Why it matters now
EPSS 0.0837 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2012:0321 Released 2012-02-21 · Red Hat rating Moderatecvs security update
- Red Hat Enterprise Linux (v. 5 server) cvs-1.11.22-11.el5_8.1, cvs-1.11.22-11.el5_8.1.i386, cvs-1.11.22-11.el5_8.1.ia64 +5
- Red Hat Enterprise Linux Desktop (v. 5 client) cvs-1.11.22-11.el5_8.1, cvs-1.11.22-11.el5_8.1.i386, cvs-inetd-1.11.22-11.el5_8.1 +1
- Red Hat Enterprise Linux Desktop (v. 6) cvs-1.11.23-11.el6_2.1
- Red Hat Enterprise Linux HPC Node (v. 6) cvs-1.11.23-11.el6_2.1
- Red Hat Enterprise Linux Server (v. 6) cvs-1.11.23-11.el6_2.1
- Red Hat Enterprise Linux Workstation (v. 6) cvs-1.11.23-11.el6_2.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2012:0321 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2012:0321 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2012:0321 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:0321 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:0321 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:0321 |
Not affected: 1 product
- Red Hat Enterprise Linux 4
Timeline
- 2026-10-02 Threatist record created from CVE-2012-0804
- 2026-10-03 Alias added: GHSA-fr3c-7j3p-qm6p
- 2026-11-07 EPSS moved to the 95th–99th percentile
References
More Cvs vulnerabilities
- TI-2004-00362 Heap-based buffer overflow in CVS 1.11.x up to 1.11.15, and 1.12.x up to 1.12.7, when… CVSS 2.0HIGH 7.5
- TI-2004-00380 Double free vulnerability for the error_prog_name string in CVS 1.12.x through 1.12.8… CVSS 2.0HIGH 10.0
- TI-2003-00012 Double-free vulnerability in CVS 1.11.4 and earlier allows remote attackers to cause a… CVSS 2.0HIGH 7.5
- TI-2004-00382 serve_notify in CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16, does not properly… CVSS 2.0HIGH 10.0
- TI-2004-00378 CVS 1.12.x through 1.12.8, and 1.11.x through 1.11.16, does not properly handle malformed… CVSS 2.0HIGH 10.0
- TI-2004-01348 Format string vulnerability in wrapper.c in CVS 1.12.x through 1.12.8, and 1.11.x through… CVSS 2.0HIGH 7.1
Sources
- CVE-2012-0804 · CVE Program
- CVE-2012-0804 · NVD
- FIRST EPSS
- GHSA-fr3c-7j3p-qm6p · GitHub Advisory Database · CC BY 4.0
- CVE-2012-0804 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences