Debian update for perl

1) Path traversal

EUVDB-ID: #VU13236

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-12015

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to an error when processing malicious input. A remote attacker can trick the victim into extracting a specially crafted tar archive containing a file and a symbolic link (symlink) with the same name, create a file outside of the current working directory, bypass a directory-traversal protection mechanism and create or overwrite files with the privileges of the target user.

Mitigation

Update the affected package to version: 5.20.2-3+deb8u11, 5.24.1-3+deb9u4

Vulnerable software versions

Debian Linux: All versions

CPE2.3

• cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*

External links

https://www.debian.org/security/2018/dsa-4226

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.