Vulnerability identifier: #VU33314
Vulnerability risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libx11
Other software /
Other software solutions
Vendor: xorg.freedesktop.org
Description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The (1) GetDatabase and (2) _XimParseStringFile functions in X.org libX11 1.5.99.901 (1.6 RC1) and earlier do not restrict the recursion depth when processing directives to include files, which allows X servers to cause a denial of service (stack consumption) via a crafted file.
Mitigation
Install update from vendor's website.
Vulnerable software versions
libx11: 1.5.99.901
External links
http://www.debian.org/security/2013/dsa-2693
http://www.openwall.com/lists/oss-security/2013/05/23/3
http://www.ubuntu.com/usn/USN-1854-1
http://www.x.org/wiki/Development/Security/Advisory-2013-05-23
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.