79288 : Google Native Client (NaCl) Super Instructions Validator Error Sandbox Bypass
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
10	572	over 1 year ago	5 days ago	8 times	100%

Timeline

Disclosure Date
2012-01-31

Time to Patch
5 days

Description

Google Native Client (NaCl) contains a flaw related to super instructions not being marked during dynamic code modification. With specially crafted injected code, a context-dependent attacker can escape the sandbox.

Classification

Location: Context Dependent
Attack Type: Misconfiguration
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified
OSVDB: Vuln Dependent, Web Related

Solution

It has been reported that this issue has been fixed. Upgrade to revision 7712, or higher, to address this vulnerability.

Upgrade to Google Chrome version 17.0.963.56 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	17.0.963.46
Google, Inc.	Native Client (NaCl)	r7711

References

CVE ID: 2011-3020 (see also: NVD)
Secunia Advisory ID: 48016 48059 48866
Related OSVDB ID: 79283 79284 79285 79286 79287 79289 79290 79291 79292 79293 79294 79295
Vendor Specific News/Changelog Entry: http://googlechromereleases.blogspot.com/2012/02/chrome-stable-update.html
http://security.gentoo.org/glsa/glsa-201202-01.xml
http://www.srware.net/forum/viewtopic.php?f=18&t=3521
https://code.google.com/p/nativeclient/issues/detail?id=2563
https://codereview.chromium.org/9328024/
Vendor Specific Solution URL: http://src.chromium.org/viewvc/native_client?view=revision&revision=7712
Vendor Specific Advisory URL: https://code.google.com/p/chromium/issues/detail?id=111575

Credit

Nick Bray - Chromium development community

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2012-02-17 | Disagree? | There are 1 more: View All

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