#VU10571 Out-of-bounds read in libvorbis - CVE-2017-14633

Vulnerability identifier: #VU10571

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14633

CWE-ID: CWE-125

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 cause DoS condition on the target system.

The weakness exists in the function mapping0_forward() in mapping0.c due to out-of-bounds array read. A remote attacker can send the specially crafted audio file, trick the victim into operating it with vorbis_analysis() and cause the application to crash.

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/2329

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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.