[ GLSA 200601-07 ] ClamAV: Remote execution of arbitrary code

[GLSA]

Gentoo Linux Security Advisory

Title: ClamAV: Remote execution of arbitrary code (GLSA 200601-07)
Severity: high
Exploitable: remote
Date: January 13, 2006
Bug(s): #118459
ID: 200601-07

Synopsis


ClamAV is vulnerable to a buffer overflow which may lead to remote
execution of arbitrary code.


Background


ClamAV is a GPL virus scanner.


Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.88
Unaffected: >= 0.88
Architectures: All supported architectures


Description


Zero Day Initiative (ZDI) reported a heap buffer overflow
vulnerability. The vulnerability is due to an incorrect boundary check
of the user-supplied data prior to copying it to an insufficiently
sized memory buffer. The flaw occurs when the application attempts to
handle compressed UPX files.


Impact


For example by sending a maliciously crafted UPX file into a mail
server that is integrated with ClamAV, a remote attacker's supplied
code could be executed with escalated privileges.


Workaround


There is no known workaround at this time.


Resolution


All ClamAV users should upgrade to the latest version: