#VU33894 Input validation error in libXcursor - CVE-2013-2003

Vulnerability identifier: #VU33894

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-2013-2003

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: X.org

Description

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

Integer overflow in X.org libXcursor 1.1.13 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the _XcursorFileHeaderCreate function.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libXcursor: 1.1.5.2 - 1.1.13

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External links
https://lists.fedoraproject.org/pipermail/package-announce/2013-May/106791.html
https://www.debian.org/security/2013/dsa-2681
https://www.openwall.com/lists/oss-security/2013/05/23/3
https://www.securityfocus.com/bid/60121
https://www.ubuntu.com/usn/USN-1856-1
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.