CVE-2026-88914

תיאור (מקור, אנגלית)

A flaw was found in GStreamer's gst-plugins-good isomp4 plugin. When processing a specially crafted MP4 or MOV file containing CEA-608 closed-caption data, an integer overflow in 32-bit unsigned arithmetic can bypass a bounds check in the caption parser. This leads to an out-of-bounds heap read of up to 244 bytes, which is then included in the downstream caption output. An attacker could exploit this by tricking a user into opening a malicious media file, potentially resulting in disclosure of adjacent heap memory or application crash.

מדדים

CVSS 3.1

4.4 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-4/10/2026

CWE

CWE-190

קישורים

• https://access.redhat.com/security/cve/CVE-2026-88914
• https://bugzilla.redhat.com/show_bug.cgi?id=2531416
• https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12433
• https://gstreamer.freedesktop.org/security/sa-2026-0079.html