CVE-2021-21852

2021-08-1813:15:07

Debian Security Bug Tracker

security-tracker.debian.org

gpac library

mpeg-4

integer overflow

heap-based buffer overflow

memory corruption

video triggering

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.003

Percentile

70.0%

JSON

Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input at “stss” decoder can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.

OSVersionArchitecturePackageVersionFilename
Debian11allccextractor<= 0.88+ds1-1ccextractor_0.88+ds1-1_all.deb
Debian11allgpac< 1.0.1+dfsg1-4+deb11u2gpac_1.0.1+dfsg1-4+deb11u2_all.deb