CVE-2013-1675

Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the nsDOMSVGZoomEvent::mPreviousScale and nsDOMSVGZoomEvent::mNewScale functions, which allows remote attackers to obtain sensitive information from process memory via a crafted web site.

Weakness

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

Affected Software

Potential Mitigations

• Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
• For example, in Java, if the programmer does not explicitly initialize a variable, then the code could produce a compile-time error (if the variable is local) or automatically initialize the variable to the default value for the variable’s type. In Perl, if explicit initialization is not performed, then a default value of undef is assigned, which is interpreted as 0, false, or an equivalent value depending on the context in which the variable is accessed.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/26.html
• https://cwe.mitre.org/data/definitions/29.html

References

• http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00012.html
• http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00008.html
• http://rhn.redhat.com/errata/RHSA-2013-0820.html
• http://rhn.redhat.com/errata/RHSA-2013-0821.html
• http://www.debian.org/security/2013/dsa-2699
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:165
• http://www.mozilla.org/security/announce/2013/mfsa2013-47.html
• http://www.securityfocus.com/bid/59858
• http://www.ubuntu.com/usn/USN-1822-1
• http://www.ubuntu.com/usn/USN-1823-1
• https://bugzilla.mozilla.org/show_bug.cgi?id=866825
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16976