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

http://security.gentoo.org/

Severity:	high
Title:	ClamAV: Remote execution of arbitrary code
Date:	01/13/2006
Bugs:	#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	Vulnerable	Unaffected	Architecture(s)
app-antivirus/clamav	< 0.88	>= 0.88	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:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.88"

References

CVE-2006-0162

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200601-07.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.