Vulnerability identifier: #VU40973

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2013-2131

CWE-ID: CWE-134

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
RRDtool
Web applications / Other software

Vendor: Tobias Oetiker

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Format string vulnerability in the rrdtool module 1.4.7 for Python, as used in Zenoss, allows context-dependent attackers to cause a denial of service (crash) via format string specifiers to the rrdtool.graph function.

Mitigation
Install update from vendor's website.

Vulnerable software versions

RRDtool: 1.4.7

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External links
http://www.openwall.com/lists/oss-security/2013/04/18/5
http://www.openwall.com/lists/oss-security/2013/05/19/5
http://www.openwall.com/lists/oss-security/2013/05/31/2
http://bugzilla.redhat.com/show_bug.cgi?id=969296
http://github.com/oetiker/rrdtool-1.x/issues/396
http://github.com/oetiker/rrdtool-1.x/pull/397

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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. However, proof of concept for this vulnerability is available.