Vulnerability identifier: #VU32624

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-4231

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibTIFF
Universal components / Libraries / Libraries used by multiple products

Vendor: LibTIFF

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (out-of-bounds write) via a crafted (1) extension block in a GIF image or (2) GIF raster image to tools/gif2tiff.c or (3) a long filename for a TIFF image to tools/rgb2ycbcr.c.

Mitigation
Update to version 4.0.3.

Vulnerable software versions

LibTIFF: 4.0.0 - 4.0.2

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External links
http://bugzilla.maptools.org/show_bug.cgi?id=2450
http://rhn.redhat.com/errata/RHSA-2014-0223.html
http://secunia.com/advisories/54543
http://secunia.com/advisories/54628
http://www.asmail.be/msg0055359936.html
http://www.debian.org/security/2013/dsa-2744
http://www.openwall.com/lists/oss-security/2013/08/10/2
http://www.securityfocus.com/bid/61695
http://bugzilla.redhat.com/show_bug.cgi?id=995965

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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.