(Ubuntu Issues Fix) libpng Chunk Decompression Heap Overflow Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1026699 |
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SecurityTracker URL: http://securitytracker.com/id/1026699
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CVE Reference:
CVE-2011-3026
(Links to External Site)
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Date: Feb 17 2012
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
A vulnerability was reported in libpng. A remote user can cause arbitrary code to be executed on the target user's system.
The software does not properly verify a size value when allocating memory during chunk decompression. A remote user can create a specially crafted PNG image file that, when loaded by the target user or application, will trigger a heap overflow in png_decompress_chunk() and execute arbitrary code on the target system. The code will run with the privileges of the target user or application.
The vulnerability resides in 'pngrutil.c'.
Jueri Aedla reported this vulnerability.
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Impact:
A remote user can create a PNG image file that, when loaded by the target user or application, will execute arbitrary code on the target system.
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Solution:
Ubuntu has issued a fix.
The Ubuntu advisory is available at:
http://www.ubuntu.com/usn/usn-1367-1
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Vendor URL: www.libpng.org/pub/png/libpng.html (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Ubuntu)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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