81961 : Google Chrome PDF Viewer Corrupt Font Encoding Name Handling Use-after-free Issue
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
6	518	about 1 year ago	11 days ago	5 times	100%

Timeline

Disclosure Date
2012-05-15

Time to Patch
25 days

Description

Google Chrome contains a use-after-free error in the PDF viewer when handling corrupt CID font encoding names. With a specially crafted PDF file, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.

Classification

Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: PoC Public
Disclosure: Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Solution

Upgrade to version 19.0.1084.46 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Google, Inc.

Chrome

18.0.1025.168

References

Security Tracker: 1027067
OVAL ID: 15208
CVE ID: 2011-3099 (see also: NVD)
Secunia Advisory ID: 49194 49420
Bugtraq ID: 53540
Related OSVDB ID: 81945 81946 81947 81948 81949 81950 81951 81952 81953 81954 81955 81956 81957 81958 81959 81960 81962 81963 81964
Vendor Specific News/Changelog Entry: http://code.google.com/p/chromium/issues/detail?id=124479
http://googlechromereleases.blogspot.com/2012/05/stable-channel-update.html
http://www.srware.net/forum/viewtopic.php?f=18&t=3729

Credit

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2012-05-16 | Disagree? | There are 1 more: View All

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