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Vulnerability of gThumb: buffer overflow via _cairo_image_surface_create_from_jpeg

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via _cairo_image_surface_create_from_jpeg() of gThumb, in order to trigger a denial of service, and possibly to run code.
Impacted systems: Debian.
Severity of this alert: 2/4.
Creation date: 14/01/2020.
Références of this alert: CVE-2019-20326, DLA-2066-1, VIGILANCE-VUL-31313.

Description of the vulnerability 

An attacker can trigger a buffer overflow via _cairo_image_surface_create_from_jpeg() of gThumb, in order to trigger a denial of service, and possibly to run code.
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This threat impacts software or systems such as Debian.

Our Vigil@nce team determined that the severity of this computer threat is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this cybersecurity bulletin.

Solutions for this threat 

Debian 8: new gthumb packages.
New packages are available:
  Debian 8: gthumb 3:3.3.1-2.1+deb8u2
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