Bug 675092 (CVE-2011-0056) - CVE-2011-0056 Mozilla Buffer overflow in JavaScript atom map (MFSA 2011-05)
Summary: CVE-2011-0056 Mozilla Buffer overflow in JavaScript atom map (MFSA 2011-05)
Alias: CVE-2011-0056
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2011-02-04 09:31 UTC by Huzaifa S. Sidhpurwala
Modified: 2019-09-29 12:42 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-04-11 21:49:38 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0310 0 normal SHIPPED_LIVE Critical: firefox security and bug fix update 2011-03-02 01:09:43 UTC

Description Huzaifa S. Sidhpurwala 2011-02-04 09:31:42 UTC
Security researcher Christian Holler reported that the JavaScript 
engine's internal mapping of string values contained an error in 
cases where the number of values being stored was above 64K. 
In such cases an offset pointer was manually moved forwards and 
backwards to access the larger address space. 

If an exception was thrown between the time that the offset pointer 
was moved forward and the time it was reset, then the exception 
object would be read from an invalid memory address, potentially 
executing attacker-controlled memory.

Comment 1 Vincent Danen 2011-03-01 23:21:51 UTC
This is now public:


Comment 2 errata-xmlrpc 2011-03-02 01:10:10 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2011:0310 https://rhn.redhat.com/errata/RHSA-2011-0310.html

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