#VU33890 Input validation error in libxres - CVE-2013-1988

Vulnerability identifier: #VU33890

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-1988

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libxres
Other software / Other software solutions

Vendor: xorg.freedesktop.org

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Multiple integer overflows in X.org libXRes 1.0.6 and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the (1) XResQueryClients and (2) XResQueryClientResources functions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libxres: 1.0.1 - 1.0.5

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External links
https://lists.fedoraproject.org/pipermail/package-announce/2013-May/106880.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00155.html
https://www.debian.org/security/2013/dsa-2688
https://www.openwall.com/lists/oss-security/2013/05/23/3
https://www.ubuntu.com/usn/USN-1864-1
https://www.x.org/wiki/Development/Security/Advisory-2013-05-23

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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.