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Vulnerability Summary for CVE-2013-2020

Original release date: 05/13/2013
Last revised: 09/28/2015


Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to 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.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service
Per http://www.ubuntu.com/usn/USN-1816-1/ "A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 13.04 Ubuntu 12.10 Ubuntu 12.04 LTS Ubuntu 11.10 Ubuntu 10.04 LTS"

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External Source: CONFIRM
Name: http://blog.clamav.net/2013/04/clamav-0978-has-been-released.html
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20130429 Re: Multiple potential security issues fixed in ClamAV 0.97.8 - any further details?
External Source: CONFIRM
Name: http://support.apple.com/kb/HT5880
External Source: FEDORA
Name: FEDORA-2013-10853
External Source: SUSE
Name: openSUSE-SU-2013:0881
External Source: SUSE
Name: SUSE-SU-2014:1571
External Source: CONFIRM
Name: https://bugzilla.clamav.net/show_bug.cgi?id=7055
External Source: FEDORA
Name: FEDORA-2013-10953
External Source: MLIST
Name: [oss-security] 20130424 Re: Multiple potential security issues fixed in ClamAV 0.97.8 - any further details?
External Source: CONFIRM
Name: http://support.apple.com/kb/HT5892
External Source: APPLE
Name: APPLE-SA-2013-09-17-1
External Source: FEDORA
Name: FEDORA-2013-10980
External Source: FEDORA
Name: FEDORA-2013-8047
External Source: UBUNTU
Name: USN-1816-1
External Source: CONFIRM
Name: https://github.com/vrtadmin/clamav-devel/commit/270e368b99e93aa5447d46c797c92c3f9f39f375
External Source: MANDRIVA
Name: MDVSA-2013:159
External Source: APPLE
Name: APPLE-SA-2013-09-12-1
External Source: SUSE
Name: openSUSE-SU-2013:0883
External Source: BID
Name: 59434

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:clamav:clamav:0.97.1
* cpe:/a:clamav:clamav:0.95
* cpe:/a:clamav:clamav:0.97.2
* cpe:/a:clamav:clamav:0.97.3
* cpe:/a:clamav:clamav:0.95:src1
* cpe:/a:clamav:clamav:0.95:src2
* cpe:/a:clamav:clamav:0.96:rc2
* cpe:/a:clamav:clamav:0.96
* cpe:/a:clamav:clamav:0.96:rc1
* cpe:/a:clamav:clamav:0.95.1
* cpe:/a:clamav:clamav:0.95:rc2
* cpe:/a:clamav:clamav:0.95.3
* cpe:/a:clamav:clamav:0.95.2
* cpe:/a:clamav:clamav:0.90:rc3
* cpe:/a:clamav:clamav:0.91:rc1
* cpe:/a:clamav:clamav:0.91:rc2
* cpe:/a:clamav:clamav:0.95:rc1
* cpe:/a:clamav:clamav:0.9:rc1
* cpe:/a:clamav:clamav:0.90:rc1
* cpe:/a:clamav:clamav:0.90:rc1.1
* cpe:/a:clamav:clamav:0.90:rc2
* cpe:/a:clamav:clamav:0.92_p0
* cpe:/a:clamav:clamav:0.93
* cpe:/a:clamav:clamav:0.93.2
* cpe:/a:clamav:clamav:0.93.3
* cpe:/a:clamav:clamav:0.90.2
* cpe:/a:clamav:clamav:0.90.1_p0
* cpe:/a:clamav:clamav:0.90.1
* cpe:/a:clamav:clamav:0.90
* cpe:/a:clamav:clamav:0.90.3_p0
* cpe:/a:clamav:clamav:0.90.3_p1
* cpe:/a:clamav:clamav:0.90.2_p0
* cpe:/a:clamav:clamav:0.90.3
* cpe:/a:clamav:clamav:0.91.2
* cpe:/a:clamav:clamav:0.91.2_p0
* cpe:/a:clamav:clamav:0.91
* cpe:/a:clamav:clamav:0.91.1
* cpe:/a:clamav:clamav:0.92
* cpe:/a:clamav:clamav:0.96.5
* cpe:/a:clamav:clamav:0.92.1
* cpe:/a:clamav:clamav:0.93.1
* cpe:/a:clamav:clamav:0.94.1
* cpe:/a:clamav:clamav:0.96.1
* cpe:/a:clamav:clamav:0.96.2
* cpe:/a:clamav:clamav:0.96.4
* cpe:/a:clamav:clamav:0.96.3
* cpe:/a:clamav:clamav:0.97.5
* cpe:/a:clamav:clamav:0.97.4
* cpe:/a:clamav:clamav:0.94.2
* cpe:/a:clamav:clamav:0.94
* cpe:/a:clamav:clamav:0.97
* cpe:/a:clamav:clamav:0.97:rc
* cpe:/a:clamav:clamav:0.97.7 and previous versions
+ Configuration 2
+ OR
* cpe:/o:suse:linux_enterprise_server:11.0:sp1
* cpe:/o:suse:linux_enterprise_server:11.0:sp2
+ Configuration 3
+ OR
* cpe:/o:canonical:ubuntu_linux:13.04
* cpe:/o:canonical:ubuntu_linux:12.10
* cpe:/o:canonical:ubuntu_linux:12.04:-:lts
* cpe:/o:canonical:ubuntu_linux:11.10
* cpe:/o:canonical:ubuntu_linux:10.04:-:lts

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)

Change History 2 change records found - show changes