VUPEN Security - LibTIFF LZW Data Decoding Buffer Underflow Vulnerability / Exploit (Security Advisories)

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>> LibTIFF LZW Data Decoding Buffer Underflow Vulnerability

Title : LibTIFF LZW Data Decoding Buffer Underflow Vulnerability
Advisory ID : VUPEN/ADV-2008-2438
CVE ID : CVE-2008-2327
CWE ID : CWE-124
Rated as : Moderate Risk

Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-08-26

Advisory Details

Description

Affected Products

Solution

References

Technical Description

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A vulnerability has been identified in LibTIFF, which could be exploited by attackers to compromise a vulnerable system. This issue is caused by a buffer underflow error in the "LZWDecodeCompat()", "LZWDecode()", and "LZWDecodeVector()" [tif_lzw.c] functions when decoding malformed LZW data, which could be exploited by attackers to crash an affected application or execute arbitrary code by tricking a user into opening a malicious TIFF file.

Credits

Vulnerability reported by Drew Yao (Apple Product Security).

ChangeLog

2008-08-26 : Initial release

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