#VU32684 Input validation error in ClamAV - CVE-2013-2020
Vulnerability identifier: #VU32684
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2013-2020
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
ClamAV
Client/Desktop applications /
Antivirus software/Personal firewalls
Vendor: ClamAV
Description
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read.
Mitigation
Update to version 0.97.8.
Vulnerable software versions
ClamAV: 0.97.0 - 0.97.7
External links
https://blog.clamav.net/2013/04/clamav-0978-has-been-released.html
https://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
https://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-June/109514.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-June/109639.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-June/109652.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-May/105575.html
https://lists.opensuse.org/opensuse-security-announce/2014-12/msg00006.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00018.html
https://lists.opensuse.org/opensuse-updates/2013-06/msg00020.html
https://secunia.com/advisories/53150
https://secunia.com/advisories/53182
https://support.apple.com/kb/HT5880
https://support.apple.com/kb/HT5892
https://www.mandriva.com/security/advisories?name=MDVSA-2013:159
https://www.openwall.com/lists/oss-security/2013/04/25/2
https://www.openwall.com/lists/oss-security/2013/04/29/20
https://www.securityfocus.com/bid/59434
https://www.ubuntu.com/usn/USN-1816-1
https://bugzilla.clamav.net/show_bug.cgi?id=7055
https://github.com/vrtadmin/clamav-devel/commit/270e368b99e93aa5447d46c797c92c3f9f39f375
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
