Ubuntu update for gross

1) Stack-based buffer overflow

EUVDB-ID: #VU95173

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-2023-52159

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 when processing SMTP transaction parameters that cause an incorrect strncat for a log entry. A remote unauthenticated attacker can send specially crafted input to the application, trigger a stack-based buffer overflow 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 gross to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 24.04

gross (Ubuntu package): before Ubuntu Pro

External links

http://ubuntu.com/security/notices/USN-6942-1

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.