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[ GLSA 200909-04 ] Clam AntiVirus: Multiple vulnerabilities
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GLSA
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PostPosted: Wed Sep 09, 2009 3:26 pm    Post subject: [ GLSA 200909-04 ] Clam AntiVirus: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Clam AntiVirus: Multiple vulnerabilities (GLSA 200909-04)
Severity: normal
Exploitable: remote
Date: September 09, 2009
Bug(s): #264834, #265545
ID: 200909-04

Synopsis


Multiple vulnerabilities in ClamAV allow for the remote execution of
arbitrary code or Denial of Service.


Background


Clam AntiVirus (short: ClamAV) is an anti-virus toolkit for UNIX,
designed especially for e-mail scanning on mail gateways.


Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.95.2
Unaffected: >= 0.95.2
Architectures: All supported architectures


Description


Multiple vulnerabilities have been found in ClamAV:
  • The
    vendor reported a Divide-by-zero error in the PE ("Portable
    Executable"; Windows .exe) file handling of ClamAV
    (CVE-2008-6680).
  • Jeffrey Thomas Peckham found a flaw in
    libclamav/untar.c, possibly resulting in an infinite loop when
    processing TAR archives in clamd and clamscan (CVE-2009-1270).
  • Martin Olsen reported a vulnerability in the CLI_ISCONTAINED macro
    in libclamav/others.h, when processing UPack archives
    (CVE-2009-1371).
  • Nigel disclosed a stack-based buffer overflow
    in the "cli_url_canon()" function in libclamav/phishcheck.c when
    processing URLs (CVE-2009-1372).


Impact


A remote attacker could entice a user or automated system to process a
specially crafted UPack archive or a file containing a specially
crafted URL, possibly resulting in the remote execution of arbitrary
code with the privileges of the user running the application, or a
Denial of Service. Furthermore, a remote attacker could cause a Denial
of Service by supplying a specially crafted TAR archive or PE
executable to a Clam AntiVirus instance.


Workaround


There is no known workaround at this time.


Resolution


All Clam AntiVirus users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.95.2"


References

CVE-2008-6680
CVE-2009-1270
CVE-2009-1371
CVE-2009-1372


Last edited by GLSA on Mon Aug 25, 2014 4:29 am; edited 3 times in total
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