CVE-2013-6425
pixman: integer underflow when handling trapezoids
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Severity
ImportantRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · July 16, 2013
Updated · November 21, 2025
Description
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.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-190 · Integer Overflow or Wraparound