Input validation error in ClamAV
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2013-2020 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
ClamAV Client/Desktop applications / Antivirus software/Personal firewalls |
| Vendor | ClamAV |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Input validation error
EUVDB-ID: #VU32684
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2013-2020
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe 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.
MitigationUpdate to version 0.97.8.
Vulnerable software versionsClamAV: 0.97.0 - 0.97.7
External linkshttp://blog.clamav.net/2013/04/clamav-0978-has-been-released.html
http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
http://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109514.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109639.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109652.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105575.html
http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00006.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00018.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00020.html
http://secunia.com/advisories/53150
http://secunia.com/advisories/53182
http://support.apple.com/kb/HT5880
http://support.apple.com/kb/HT5892
http://www.mandriva.com/security/advisories?name=MDVSA-2013:159
http://www.openwall.com/lists/oss-security/2013/04/25/2
http://www.openwall.com/lists/oss-security/2013/04/29/20
http://www.securityfocus.com/bid/59434
http://www.ubuntu.com/usn/USN-1816-1
http://bugzilla.clamav.net/show_bug.cgi?id=7055
http://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.
