GLSA 202008-05: gThumb: Arbitrary code execution

http://security.gentoo.org/

Severity:	normal
Title:	gThumb: Arbitrary code execution
Date:	08/08/2020
Bugs:	#712932
ID:	202008-05

Synopsis

A buffer overflow in gThumb might allow remote attacker(s) to execute arbitrary code.

Background

gThumb is an image viewer and browser for GNOME.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/gthumb	< 3.10.0	>= 3.10.0	All supported architectures

Description

A heap-based buffer overflow in gThumb’s _cairo_image_surface_create_from_jpeg() function, located in extensions/cairo_io/cairo-image-surface-jpeg.c was discovered.

Impact

A remote attacker could entice a user to open a specially crafted image file using gThumb, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All gThumb users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=media-gfx/gthumb-3.10.0"

References

CVE-2019-20326

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202008-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.