SUSE update for xz

1) Input validation error

EUVDB-ID: #VU62002

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1271

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation when processing filenames with two or more newlines. A remote attacker can force zgrep or xzgrep to write arbitrary files on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.

Mitigation

Update the affected package xz to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 11-SP4-LTSS-EXTREME-CORE

SUSE Linux Enterprise Point of Sale: 11-SP3

SUSE Linux Enterprise Debuginfo: 11-SP3 - 11-SP4

xz-debugsource: before 5.0.3-0.12.7.1

xz-debuginfo: before 5.0.3-0.12.7.1

liblzma5-32bit: before 5.0.3-0.12.7.1

xz-lang: before 5.0.3-0.12.7.1

xz: before 5.0.3-0.12.7.1

liblzma5: before 5.0.3-0.12.7.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-202214938-1/

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.