#VU95173 Stack-based buffer overflow in gross - CVE-2023-52159

Vulnerability identifier: #VU95173

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-52159

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
gross
Other software / Other software solutions

Vendor: code.google.com

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
Install update from vendor's website.

Vulnerable software versions

gross: 0.9.3 - 1.0.3

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External links
https://codeberg.org/bizdelnick/gross/wiki/Known-vulnerabilities#cve-2023-52159
https://lists.debian.org/debian-lts-announce/2024/03/msg00027.html

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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.