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Bug 675143 (CVE-2011-0058)

Summary: CVE-2011-0058 Mozilla memory corruption during text run construction (MFSA 2011-07)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: gecko-bugs-nobody, security-response-team, vdanen
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: public=20110301,reported=20110204,source=mozilla,impact=critical,cvss2=6.8/AV:N/AC:M/Au:N/C:P/I:P/A:P,rhel-6.0.z/firefox=affected,rhel-5.6.z/firefox=affected,rhel-4.8.z/firefox=affected
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-04-12 18:00:51 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description Huzaifa S. Sidhpurwala 2011-02-04 08:02:13 EST
Alex Miller reported that when very long strings were constructed
and inserted into an HTML document, the browser would incorrectly 
construct the layout objects used to display the text. 
Under such conditions an incorrect length would be calculated for 
a text run resulting in too small of a memory buffer being allocated 
to store the text. 
This issue could be used by an attacker to write data past the end 
of the buffer and execute malicious code on a victim's computer.
Comment 1 Vincent Danen 2011-03-01 18:27:01 EST
This is now public:
Comment 2 errata-xmlrpc 2011-03-01 20:10:22 EST
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