openEuler update for libsndfile

1) Out-of-bounds read

EUVDB-ID: #VU63043

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4156

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the flac_read_loop() function in flac.c. A remote attacker can pass specially crafted data to the application, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

libsndfile-utils-help: before 1.0.28-20

libsndfile-devel: before 1.0.28-20

libsndfile-utils: before 1.0.28-20

libsndfile-debugsource: before 1.0.28-20

libsndfile-debuginfo: before 1.0.28-20

libsndfile: before 1.0.28-20

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1680

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.