PT-2018-6772 · FFmpeg · Libav

Published 2018-03-23 · Updated 2019-10-03 · CVE-2017-18246

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Libav version 12.2

Description: The issue allows remote attackers to cause a denial of service, specifically a heap-based buffer over-read, by providing a crafted media file. This is due to a problem in the pcm encode frame function located in libavcodec/pcm.c.

Recommendations: For Libav version 12.2, consider applying a patch or fix that addresses the issue in the pcm encode frame function to prevent the heap-based buffer over-read. As a temporary workaround, consider restricting the processing of crafted media files until a patch is available.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2017-18246

Affected Products

Libav

References · 6

• https://ubuntu.com/security/CVE-2017-18246 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18246 · Security Note
• https://osv.dev/vulnerability/CVE-2017-18246 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-18246 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-18246 · Security Note
• https://bugzilla.libav.org/show_bug.cgi?id=1095 · Note