U radu programskog paketa ClamAV uočena su tri nova sigurnosna propusta. Udaljeni ih napadač može iskoristiti za zaobilaženje detekcije malicioznih programa.

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Fedora Update Notification
FEDORA-2012-9563
2012-06-16 23:35:58
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Name        : clamav
Product     : Fedora 17
Version     : 0.97.5
Release     : 1700.fc17
URL         : http://www.clamav.net
Summary     : End-user tools for the Clam Antivirus scanner
Description :
Clam AntiVirus is an anti-virus toolkit for UNIX. The main purpose of this
software is the integration with mail servers (attachment scanning). The
package provides a flexible and scalable multi-threaded daemon, a command
line scanner, and a tool for automatic updating via Internet. The programs
are based on a shared library distributed with the Clam AntiVirus package,
which you can use with your own software. The virus database is based on
the virus database from OpenAntiVirus, but contains additional signatures
(including signatures for popular polymorphic viruses, too) and is KEPT UP
TO DATE.

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Update Information:

.
.
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ChangeLog:

* Sat Jun 16 2012 Enrico Scholz <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> -
0.97.5-1700
- updated to 0.97.5
- CVE-2012-1457: allows to bypass malware detection via a TAR archive
  entry with a length field that exceeds the total TAR file size
- CVE-2012-1458: allows to bypass malware detection via a crafted
  reset interval in the LZXC header of a CHM file
- CVE-2012-1459: allows to bypass malware detection via a TAR archive
  entry with a length field corresponding to that entire entry, plus
  part of the header of the next entry
- ship local copy of virus database; it was removed by accident from
  0.97.5 tarball
* Fri Apr 13 2012 Enrico Scholz <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> -
0.97.4-1700
- updated to 0.97.4
- build with -fPIE
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References:

  [ 1 ] Bug #806094 - CVE-2012-1457 clamav: overly long length field in tar
files evade detection
        https://bugzilla.redhat.com/show_bug.cgi?id=806094
  [ 2 ] Bug #806100 - CVE-2012-1458 clamav: specially-crafted CHM files evade
detection
        https://bugzilla.redhat.com/show_bug.cgi?id=806100
  [ 3 ] Bug #806101 - CVE-2012-1459 clamav: specially-crafted length field in
tar files evade detection
        https://bugzilla.redhat.com/show_bug.cgi?id=806101
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This update can be installed with the "yum" update program.  Use 
su -c 'yum update clamav' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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