CVE-2008-0062

KDC in MIT Kerberos 5 (krb5kdc) does not set a global variable for some krb4 message types, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted messages that trigger a NULL pointer dereference or double-free.

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

Name	Vendor	Start Version	End Version
Kerberos_5	Mit	*	1.6.3 (including)
Red Hat Enterprise Linux 2.1	RedHat	krb5-0:1.2.2-48	*
Red Hat Enterprise Linux 3	RedHat	krb5-0:1.2.7-68	*
Red Hat Enterprise Linux 4	RedHat	krb5-0:1.3.4-54.el4_6.1	*
Red Hat Enterprise Linux 4.5 Z Stream	RedHat	krb5-0:1.3.4-49.el4_5.1	*
Red Hat Enterprise Linux 5	RedHat	krb5-0:1.6.1-17.el5_1.1	*
Krb5	Ubuntu	dapper	*
Krb5	Ubuntu	devel	*
Krb5	Ubuntu	edgy	*
Krb5	Ubuntu	feisty	*
Krb5	Ubuntu	gutsy	*
Krb5	Ubuntu	upstream	*

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.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2008-0062
CWE	https://cwe.mitre.org/data/definitions/665.html

Improper Initialization

Weakness

Affected Software

Potential Mitigations

References

CVE-2008-0062

Improper Initialization

Weakness

Affected Software

Potential Mitigations

Related Attack Patterns

References