Red Hat Bugzilla – Bug 806094
CVE-2012-1457 clamav: overly long length field in tar files evade detection
Last modified: 2013-01-29 18:05:21 EST
Common Vulnerabilities and Exposures assigned an identifier CVE-2012-1457 to
the following vulnerability:
Reference: BUGTRAQ:20120319 Evasion attacks expoliting file-parsing vulnerabilities in antivirus products
The TAR file parser in Avira AntiVir 220.127.116.11, Antiy Labs AVL SDK
18.104.22.168, avast! Antivirus 4.8.1351.0 and 5.0.677.0, AVG Anti-Virus
10.0.0.1190, Bitdefender 7.2, Quick Heal (aka Cat QuickHeal) 11.00,
ClamAV 0.96.4, Command Antivirus 22.214.171.124, Emsisoft Anti-Malware
126.96.36.199, eSafe 188.8.131.52, F-Prot Antivirus 184.108.40.206, G Data AntiVirus
21, Ikarus Virus Utilities T3 Command Line Scanner 220.127.116.11, Jiangmin
Antivirus 13.0.900, K7 AntiVirus 9.77.3565, Kaspersky Anti-Virus
18.104.22.168, McAfee Anti-Virus Scanning Engine 5.400.0.1158, McAfee
Gateway (formerly Webwasher) 2010.1C, Antimalware Engine 1.1.6402.0 in
Microsoft Security Essentials 2.0, NOD32 Antivirus 5795, Norman
Antivirus 6.06.12, PC Tools AntiVirus 22.214.171.124, Rising Antivirus
22.83.00.03, AVEngine 20126.96.36.199 in Symantec Endpoint Protection
11, Trend Micro AntiVirus 188.8.131.524, Trend Micro HouseCall
184.108.40.2064, VBA32 220.127.116.11, and VirusBuster 18.104.22.168 allows
remote attackers to bypass malware detection via a TAR archive entry
with a length field that exceeds the total TAR file size. NOTE: this
may later be SPLIT into multiple CVEs if additional information is
published showing that the error occurred independently in different
TAR parser implementations.
Created clamav tracking bugs for this issue
Affects: fedora-all [bug 806102]
Affects: epel-all [bug 806103]
The upstream bug for this flaw is here:
Upstream has no further information as of yet; the report indicates the flaw is in 0.96.4, but the current upstream version is 0.97.4, so it's unknown whether these flaws are still present.
clamav-0.97.5-1700.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
clamav-0.97.5-1600.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
clamav-0.97.5-1.el5 has been pushed to the Fedora EPEL 5 stable repository. If problems still persist, please make note of it in this bug report.
clamav-0.97.5-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.