#VU10569 Memory corruption in libvorbis - CVE-2017-14632

Vulnerability identifier: #VU10569

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-2017-14632

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

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

Vendor: xiph.org

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to freeing uninitialized memory in the function vorbis_analysis_headerout() in info.c when vi->channels<=0. A remote attacker can supply specially crafted files, trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvorbis: 1.3.5

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External links
https://gitlab.xiph.org/xiph/vorbis/issues/2328

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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.