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CVE-2019-18397

Published: 7 November 2019

A buffer overflow in the fribidi_get_par_embedding_levels_ex() function in lib/fribidi-bidi.c of GNU FriBidi through 1.0.7 allows an attacker to cause a denial of service or possibly execute arbitrary code by delivering crafted text content to a user, when this content is then rendered by an application that uses FriBidi for text layout calculations. Examples include any GNOME or GTK+ based application that uses Pango for text layout, as this internally uses FriBidi for bidirectional text layout. For example, the attacker can construct a crafted text file to be opened in GEdit, or a crafted IRC message to be viewed in HexChat.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
fribidi
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(0.19.7-2)
disco
Released (1.0.5-3.1ubuntu0.19.04.1)
eoan
Released (1.0.5-3.1ubuntu0.19.10.1)
precise Not vulnerable
(0.19.2-1)
trusty Not vulnerable
(0.19.6-1)
upstream Needs triage

xenial Not vulnerable
(0.19.7-1)
Patches:
upstream: https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568