Code Injection in gThumb - CVE-2019-20326
Published: March 16, 2020 / Updated: July 17, 2020
Vulnerability identifier: #VU30332
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-20326
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in a crafted JPEG file. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
gThumb
Gentoo Linux
Ubuntu
gthumb-data (Ubuntu package)
gthumb (Ubuntu package)
Gentoo Linux
Ubuntu
gthumb-data (Ubuntu package)
gthumb (Ubuntu package)
How to mitigate CVE-2019-20326
Update to version 3.8.3.
gThumb - update to 3.8.3
gthumb-data (Ubuntu package) - update to 3:3.8.0-2.1ubuntu0.1
gthumb (Ubuntu package) - update to 3:3.8.0-2.1ubuntu0.1
gthumb-data (Ubuntu package) - update to 3:3.8.0-2.1ubuntu0.1
gthumb (Ubuntu package) - update to 3:3.8.0-2.1ubuntu0.1
External References
- https://github.com/Fysac/CVE-2019-20326
- https://gitlab.gnome.org/GNOME/gthumb/commit/4faa5ce2358812d23a1147953ee76f59631590ad
- https://gitlab.gnome.org/GNOME/gthumb/commit/ca8f528209ab78935c30e42fe53bdf1a24f3cb44
- https://gitlab.gnome.org/GNOME/gthumb/commits/master/extensions/cairo_io/cairo-image-surface-jpeg.c