73248 : Libxml2 xpath.c Xpath Nodeset Processing Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
9	1498	about 2 years ago	about 1 month ago	11 times	100%

Timeline

Disclosure Date
2011-03-23

Description

Libxml2 contains an overflow condition in xpath.c. The issue is triggered as user-supplied input is not properly sanitized when processing of a XPath nodeset. With a specially crafted request containing a malformed XPath expression, a remote attacker can cause a heap-based buffer overflow to cause a denial of service or potentially execute arbitrary code.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, a fix has been released in the GIT repository.

Products

Libxml2

2.7.8

References

Credit

Chris Evans

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2011-09-02 | Disagree?

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