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Fencer Intel
critical 10.0

CVE-2012-0804 json

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 d…

published 2012-05-29 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0832

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.4%
EPSS 8.4% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

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.

Patch / fix

  • cvs Debian 14, Debian 13, Debian 12 2:1.12.13+real-7

debian advisories DEBIAN-CVE-2012-0804

  • cvs RHEL 5 1.11.22-11.el5_8.1
  • cvs RHEL 6 1.11.23-11.el6_2.1
  • cvs-inetd RHEL 5 1.11.22-11.el5_8.1

red hat advisories RHSA-2012:0321

  • cvs openSUSE Tumbleweed 1.12.12-183.10

opensuse advisories openSUSE-SU-2024:10504-1

  • cvs Alpine 3.24, Alpine 3.23, Alpine 3.22 +14 more 1.12.12-r0

alpine advisories ALPINE-CVE-2012-0804

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-0804 updated cvss 5.1

cvs: client proxy_connect heap-based buffer overflow

  • Red Hat Enterprise Linux (v. 5 server) cvs 1.11.22-11.el5_8.1, cvs-inetd 1.11.22-11.el5_8.1 Red Hat Enterprise Linux Desktop (v. 5 client) cvs 1.11.22-11.el5_8.1, cvs-inetd 1.11.22-11.el5_8.1 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
    fixed: vendor fix RHSA-2012:0321
  • Red Hat Enterprise Linux 4 cvs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

8.37% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.