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CVE-2018-20763

Published: 6 February 2019

In GPAC 0.7.1 and earlier, gf_text_get_utf8_line in media_tools/text_import.c in libgpac_static.a allows an out-of-bounds write because of missing szLineConv bounds checking.

From the Ubuntu Security Team

It was discovered that the GPAC MP4Box utility incorrectly handled certain memory operations. If an user or automated system were tricked into opening a specially crafted MP4 file, a remote attacker could use this issue to cause MP4Box to crash, resulting in a denial of service, or possibly execute arbitrary code.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
gpac
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(0.5.2-426-gc5ad4e4+dfsg5-5)
bionic
Released (0.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1)
cosmic
Released (0.5.2-426-gc5ad4e4+dfsg5-4ubuntu0.1)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Not vulnerable
(0.5.2-426-gc5ad4e4+dfsg5-5)
groovy Not vulnerable
(0.5.2-426-gc5ad4e4+dfsg5-5)
impish Not vulnerable
(0.5.2-426-gc5ad4e4+dfsg5-5)
jammy Not vulnerable
(0.5.2-426-gc5ad4e4+dfsg5-5)
upstream Needs triage

xenial
Released (0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1)
trusty
Released (0.5.0+svn4288~dfsg1-4ubuntu1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H