73493 : libpng pngerror.c png_format_buffer() Off-by-one PNG Image Handling Remote DoS
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Timeline

Disclosure Date
2011-06-29

Description

libpng contains a flaw in the handling of PNG files that may allow a remote denial of service. The issue is due to an off-by-one error in the 'png_format_buffer()' function in pngerror.c when handling a PNG image file. With a specially crafted PNG file, a context-dependent attacker can cause the program to crash.

Classification

Location: Context Dependent
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

It has been reported that this issue has been fixed. Upgrade to version 1.5.3rc02, or higher, to address this vulnerability.

Products

libpng

1.2.23

References

Credit

Frank Busse

CVSSv2 Score

CVSSv2 Base Score = 4.3
Source: nvd.nist.gov | Generated: 2011-07-18 | Disagree? | There are 1 more: View All

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