VULNERABILITY INTELLIGENCE

CVE-2013-5596

CVSS score6.8 MEDIUM
EPSS probability3.14%
CISA KEVNot currently listed
Published2013-10-30
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:P

Description

The cycle collection (CC) implementation in Mozilla Firefox before 25.0, Firefox ESR 24.x before 24.1, Thunderbird before 24.1, and SeaMonkey before 2.22 does not properly determine the thread for release of an image object, which allows remote attackers to execute arbitrary code or cause a denial of service (race condition and application crash) via a large HTML document containing IMG elements, as demonstrated by the Never-Ending Reddit on reddit.com.

Weakness classification

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

Primary references