Zero-day vulnerability in File Archiver

Buffer overflow
CVE-2007-3375

Known malware:

Trojan.Lhdropper

Vulnerability details

Advisory: SB2007062601 - Buffer overflow in Lhaca File Archiver

Vulnerable component: File Archiver

CVE-ID: CVE-2007-3375

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE-ID: CWE-119 - Memory corruption

Description:

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to boundary error in Lhaca File Archiver when processing .lzh archives. A remote attacker can create a specially crafted .lzh file, trick the victim into opening it, cause stack-based buffer overflow and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

External links:

https://www.symantec.com/security_response/writeup.jsp?docid=2007-062506-5500-99
http://vuln.sg/lhaca121-en.html
http://www.kb.cert.org/vuls/id/871497
https://www.symantec.com/connect/blogs/beware-lzh

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.