ИМХО тут несколько хуже, чем просто Denials of Service.
--This is a forwarded message
From: Raphael Marichez <falco@xxxxxxxxxx>
To: gentoo-announce@xxxxxxxxxx <gentoo-announce@xxxxxxxxxx>
Date: Friday, June 15, 2007, 8:35:10 PM
Subject: [Full-disclosure] [ GLSA 200706-05 ] ClamAV: Multiple Denials of
Service
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Gentoo Linux Security Advisory GLSA 200706-05
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Severity: Normal
Title: ClamAV: Multiple Denials of Service
Date: June 15, 2007
Bugs: #178082
ID: 200706-05
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Synopsis
========
ClamAV contains several vulnerabilities leading to a Denial of Service.
Background
==========
ClamAV is a GPL virus scanner.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-antivirus/clamav < 0.90.3 >= 0.90.3
Description
===========
Several vulnerabilities were discovered in ClamAV by various
researchers:
* Victor Stinner (INL) discovered that the OLE2 parser may enter in
an infinite loop (CVE-2007-2650).
* A boundary error was also reported by an anonymous researcher in
the file unsp.c, which might lead to a buffer overflow
(CVE-2007-3023).
* The file unrar.c contains a heap-based buffer overflow via a
modified vm_codesize value from a RAR file (CVE-2007-3123).
* The RAR parsing engine can be bypassed via a RAR file with a header
flag value of 10 (CVE-2007-3122).
* The cli_gentempstream() function from clamdscan creates temporary
files with insecure permissions (CVE-2007-3024).
Impact
======
A remote attacker could send a specially crafted file to the scanner,
possibly triggering one of the vulnerabilities. The two buffer
overflows are reported to only cause Denial of Service. This would lead
to a Denial of Service by CPU consumption or a crash of the scanner.
The insecure temporary file creation vulnerability could be used by a
local user to access sensitive data.
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-0.90.3"
References
==========
[ 1 ] CVE-2007-2650
[ 2 ] CVE-2007-3023
[ 3 ] CVE-2007-3024
[ 4 ] CVE-2007-3122
[ 5 ] CVE-2007-3123
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
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@xxxxxxxxxx or alternatively, you may file a bug at
.
License
=======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
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--
~/ZARAZA
Но Гарри... я безусловно отдаю предпочтение ему, за
высокую питательность и какое-то особенно нежное мясо. (Твен)
