Ubuntu update for python-babel

1) Path traversal

EUVDB-ID: #VU53015

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20095

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A local user can load arbitrary files on disk and execute arbitrary code.

Mitigation

Update the affected package python-babel to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 21.04

python-babel (Ubuntu package): before 2.6.0+dfsg.1-1ubuntu2.2

python3-babel (Ubuntu package): before 2.8.0+dfsg.1-6ubuntu0.1

python-babel-localedata (Ubuntu package): before 2.8.0+dfsg.1-6ubuntu0.1

External links

http://ubuntu.com/security/notices/USN-4962-1

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.