Ubuntu update for flac

1) Buffer overflow

EUVDB-ID: #VU80634

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-22219

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the bitwriter_grow_ in() function. A remote attacker can pass specially crafted input to the application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package flac to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

libflac8 (Ubuntu package): before Ubuntu Pro (Infra-only)

flac (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3

• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6360-2

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.