#VU18790 Out-of-bounds read in libsndfile - CVE-2019-3832

Vulnerability identifier: #VU18790

Vulnerability risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-3832

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libsndfile
Client/Desktop applications / Multimedia software

Vendor: Erik de Castro Lopo

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the wav_write_header() function in wav.c file when processing media content. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.

Note: this vulnerability is a result of an unresolved issues, described in SB2018112313 (#5).

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

libsndfile: 1.0.28

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3832
https://github.com/erikd/libsndfile/issues/456
https://github.com/erikd/libsndfile/pull/460
https://usn.ubuntu.com/4013-1/

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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.