PT-2018-6773 · Libav · Libav

Published 2018-03-23 · Updated 2018-04-13 · CVE-2017-18247

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 NULL pointer dereference, by providing a crafted media file. This is related to the av audio fifo size function in libavutil/audio fifo.c.

Recommendations: For Libav version 12.2, consider avoiding the use of the av audio fifo size function until a patch is available. As a temporary workaround, restrict the processing of crafted media files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2017-18247

Affected Products

Libav

References · 3

• https://osv.dev/vulnerability/CVE-2017-18247 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18247 · Security Note
• https://bugzilla.libav.org/show_bug.cgi?id=1089 · Note