#VU29244 Access of Uninitialized Pointer in Evince - CVE-2019-11459

Vulnerability identifier: #VU29244

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-11459

CWE-ID: CWE-824

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Evince
Client/Desktop applications / Multimedia software

Vendor: Gnome Development Team

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due tothe TIFFReadRGBAImageOriented() function called from tiff_document_render() and tiff_document_get_thumbnail() functions in the backend/tiff/tiff-document.c in GNOME Evince returns uninitialized memory instead of false, when failing to read an image. A remote attacker can gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Evince: 3.0.2 - 3.32.0

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External links
https://lists.opensuse.org/opensuse-security-announce/2019-06/msg00089.html
https://access.redhat.com/errata/RHSA-2019:3553
https://gitlab.gnome.org/GNOME/evince/issues/1129
https://lists.debian.org/debian-lts-announce/2019/08/msg00013.html
https://lists.debian.org/debian-lts-announce/2019/08/msg00014.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LU4YZK5S46TZAH4J3NYYUYFMOC47LJG/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJ6R7NMY44IHIQIY24CV3WV2GLGJPQPZ/
https://seclists.org/bugtraq/2020/Feb/18
https://usn.ubuntu.com/3959-1/
https://www.debian.org/security/2020/dsa-4624

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.