CVE-2017-14169

high

Description

In the mxf_read_primer_pack function in libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, an integer signedness error might occur when a crafted file, which claims a large "item_num" field such as 0xffffffff, is provided. As a result, the variable "item_num" turns negative, bypassing the check for a large value.

References

http://www.debian.org/security/2017/dsa-3996

http://www.securityfocus.com/bid/100692

https://github.com/FFmpeg/FFmpeg/commit/9d00fb9d70ee8c0cc7002b89318c5be00f1bbdad

https://github.com/FFmpeg/FFmpeg/commit/a4e85b2e1c8d5b4bf0091157bbdeb0e457fb7b8f

https://lists.debian.org/debian-lts-announce/2019/02/msg00005.html

Details

Source: MITRE

Published: 2017-09-07

Updated: 2021-01-04

Type: CWE-20

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH