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Fencer Intel
medium 5.0

CVE-2013-6425 json

Integer underflow in the pixman_trapezoid_valid macro in pixman.h in Pixman before 0.32.0, as used in X.Org server and cairo, allows contex…

published 12y ago modified 4mo ago also EUVD-2013-6237

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Integer underflow in the pixman_trapezoid_valid macro in pixman.h in Pixman before 0.32.0, as used in X.Org server and cairo, allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.

Patch / fix

  • pixman pixman 0.32.0
  • pixman Debian 14, Debian 13, Debian 12 0.30.2-2

debian advisories DEBIAN-CVE-2013-6425

  • pixman RHEL 5 PRODUCTIVITY, RHEL 5 0.22.0-2.2.el5_10
  • pixman RHEL 6 0.26.2-5.1.el6_5

red hat advisories RHSA-2013:1869

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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-2013-6425 updated cvss 6.8

pixman: integer underflow when handling trapezoids

  • Red Hat Enterprise Linux Desktop (v. 5 client) pixman 0.22.0-2.2.el5_10 Red Hat Enterprise Linux Desktop (v. 6) pixman 0.26.2-5.1.el6_5 Red Hat Enterprise Linux Desktop Optional (v. 6) pixman 0.26.2-5.1.el6_5 Red Hat Enterprise Linux HPC Node (v. 6) pixman 0.26.2-5.1.el6_5 Red Hat Enterprise Linux HPC Node Optional (v. 6) pixman 0.26.2-5.1.el6_5 Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) pixman 0.22.0-2.2.el5_10
    +2 more products
    Red Hat Enterprise Linux Server (v. 6) pixman 0.26.2-5.1.el6_5 Red Hat Enterprise Linux Workstation (v. 6) pixman 0.26.2-5.1.el6_5
    fixed: vendor fix RHSA-2013:1869
  • Red Hat Enterprise Linux 5 qpixman Red Hat Enterprise Linux 7 pixman
    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

2.88% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound)

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.