CVE-2011-3927

Skia, as used in Google Chrome before 16.0.912.77, does not perform all required initialization of values, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

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://code.google.com/p/chromium/issues/detail?id=108605
• http://googlechromereleases.blogspot.com/2012/01/stable-channel-update_23.html
• http://secunia.com/advisories/47694
• http://www.securitytracker.com/id?1026569
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13948