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CentOS Update for krb5-devel CESA-2009:0408 centos5 i386

Information

Severity

Severity

Critical

Family

Family

CentOS Local Security Checks

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

11 years ago

Modified

Modified

3 years ago

Summary

The remote host is missing an update for the 'krb5-devel' package(s) announced via the referenced advisory.

Insight

Insight

Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party, the Key Distribution Center (KDC). The Generic Security Service Application Program Interface (GSS-API) definition provides security services to callers (protocols) in a generic fashion. The Simple and Protected GSS-API Negotiation (SPNEGO) mechanism is used by GSS-API peers to choose from a common set of security mechanisms. An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846) Multiple input validation flaws were found in the MIT Kerberos GSS-API library's implementation of the SPNEGO mechanism. A remote attacker could use these flaws to crash any network service utilizing the MIT Kerberos GSS-API library to authenticate users or, possibly, leak portions of the service's memory. (CVE-2009-0844, CVE-2009-0845) All krb5 users should upgrade to these updated packages, which contain backported patches to correct these issues. All running services using the MIT Kerberos libraries must be restarted for the update to take effect.

Affected Software

Affected Software

krb5-devel on CentOS 5

Solution

Solution

Please install the updated packages.

Common Vulnerabilities and Exposures (CVE)