CVE-2021-3185

gstreamer: buffer overflow in gst_h264_slice_parse_dec_ref_pic_marking

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Severity

Moderate

Red Hat Product Security

7.3

CVSS 3.1

Review impact separately from score.

Published · September 23, 2020

Updated · August 8, 2026

Description

A flaw was found in the gstreamer h264 component where when parsing a h264 header, an attacker could cause the stack to be smashed, memory corruption to occur, and possibly code execution.

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 3.1 · 7.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')