#VU32237 Buffer overflow in libxv - CVE-2016-5407

Vulnerability identifier: #VU32237

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-5407

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libxv
Other software / Other software solutions

Vendor: xorg.freedesktop.org

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXv before 1.0.11 allow remote X servers to trigger out-of-bounds memory access operations via vectors involving length specifications in received data.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libxv: 1.0.2 - 1.0.10

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External links
https://www.openwall.com/lists/oss-security/2016/10/04/2
https://www.openwall.com/lists/oss-security/2016/10/04/4
https://www.securityfocus.com/bid/93368
https://www.securitytracker.com/id/1036945
https://cgit.freedesktop.org/xorg/lib/libXv/commit/?id=d9da580b46a28ab497de2e94fdc7b9ff953dab17
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3IA7BLB4C3JOYVU6UASGUJQJKUF6TO7E/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AE2VJOFA3EZA566RERQB54TFY56FROZR/
https://lists.x.org/archives/xorg-announce/2016-October/002720.html
https://security.gentoo.org/glsa/201704-03

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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.