CVE-2019-9719 - CVE House
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Status published High CVE-2019-9719

A stack-based buffer overflow in the subtitle decoder in Libav...

Vulnerability Description

A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because “no evidence of a vulnerability is provided” and only “a generic warning from a static code analysis” is provided

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from libav

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CVE-2020-18778
In Libav 12.3, there is a heap-based buffer over-read in...
Medium 6.5
CVE-2020-18776
In Libav 12.3, there is a segmentation fault in vc1_decode_b_mb_intfr...
Medium 6.5
CVE-2020-18775
In Libav 12.3, there is a heap-based buffer over-read in...
Medium 6.5
CVE-2019-9720
A stack-based buffer overflow in the subtitle decoder in Libav...
Medium 6.5
CVE-2019-9717
In Libav 12.3, a denial of service in the subtitle...
Medium 6.5

Affected Vendor

Affected Software

libav
Vulnerable Versions:
0

Timeline

Official Publish: September 19th, 2019
Last Modified: August 4th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.