drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in ClamAV
Name: |
Mehrere Probleme in ClamAV |
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ID: |
200706-05 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Fr, 15. Juni 2007, 18:55 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2650
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3023
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3024
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3122
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3123 |
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Applikationen: |
Clam Antivirus |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200706-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2650 [ 2 ] CVE-2007-3023 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3023 [ 3 ] CVE-2007-3024 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3024 [ 4 ] CVE-2007-3122 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3122 [ 5 ] CVE-2007-3123 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3123
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200706-05.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 http://bugs.gentoo.org.
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.
http://creativecommons.org/licenses/by-sa/2.5
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