68167 : bzip2 decompress.c BZ_decompress Function Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	928	over 2 years ago	4 months ago	8 times	100%

Timeline

Disclosure Date
2010-09-20

Description

bzip2 contains an integer overflow condition in the decompress functionality. The issue is due to the 'BZ2_decompress()' function in decompress.c not validating user-supplied input when decompressing files. With a specially crafted compressed file, a context-dependent attacker can cause an integer overflow, resulting in a denial of service or potentially execution of arbitrary code.

Classification

Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 1.0.6 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Julian Seward

bzip2

1.0.5

References

Tools & Filters

	49712

Credit

Mikolaj Izdebski

CVSSv2 Score

CVSSv2 Base Score = 5.1
Source: nvd.nist.gov | Generated: 2010-09-29 | Disagree?

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