CVE-2013-2131

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.

Weakness

The product uses a function that accepts a format string as an argument, but the format string originates from an external source.

Affected Software

Extended Description

When an attacker can modify an externally-controlled format string, this can lead to buffer overflows, denial of service, or data representation problems. It should be noted that in some circumstances, such as internationalization, the set of format strings is externally controlled by design. If the source of these format strings is trusted (e.g. only contained in library files that are only modifiable by the system administrator), then the external control might not itself pose a vulnerability.

Potential Mitigations

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/135.html
• https://cwe.mitre.org/data/definitions/67.html

References

• 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
• https://bugzilla.redhat.com/show_bug.cgi?id=969296
• https://github.com/oetiker/rrdtool-1.x/issues/396
• https://github.com/oetiker/rrdtool-1.x/pull/397