Ubuntu update for perl

Published: 2023-11-27

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-48522 CVE-2023-47038
CWE-ID	CWE-121 CWE-193
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system perl (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU83507

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48522

CWE-ID: CWE-121 - Stack-based buffer overflow

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 S_find_uninit_var() function in sv.c. A remote attacker can pass specially crafted input to the application, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Mitigation

Update the affected package perl to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 23.10

perl (Ubuntu package): before 5.36.0-9ubuntu1.1

CPE2.3

External links

http://ubuntu.com/security/notices/USN-6517-1

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.

2) Off-by-one

EUVDB-ID: #VU83508