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CVE-2010-1321

Impact:
Important
Public Date:
2010-05-18
IAVA:
2011-A-0160, 2011-A-0066
CWE:
CWE-476
Bugzilla:
582466: CVE-2010-1321 krb5: null pointer dereference in GSS-API library leads to DoS (MITKRB5-SA-2010-005)

The MITRE CVE dictionary describes this issue as:

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.

Find out more about CVE-2010-1321 from the MITRE CVE dictionary dictionary and NIST NVD.

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux Supplementary (v. 6) (java-1.6.0-ibm) RHSA-2010:0987 2010-12-15
Red Hat Enterprise Linux AS version 4 Extras (java-1.5.0-ibm) RHSA-2010:0807 2010-10-27
Red Hat Enterprise Linux Supplementary 5 (java-1.4.2-ibm) RHSA-2011:0152 2011-01-17
Red Hat Enterprise Linux 4 (krb5) RHSA-2010:0423 2010-05-18
Red Hat Enterprise Linux Supplementary 5 (java-1.4.2-ibm) RHSA-2010:0935 2010-12-01
Red Hat Enterprise Linux Supplementary 5 (java-1.5.0-ibm) RHSA-2010:0807 2010-10-27
Red Hat Enterprise Linux AS version 4 Extras (java-1.4.2-ibm) RHSA-2011:0152 2011-01-17
Red Hat Enterprise Linux 3 (krb5) RHSA-2010:0423 2010-05-18
Red Hat Enterprise Linux AS version 4 Extras (java-1.4.2-ibm) RHSA-2010:0935 2010-12-01
Red Hat Enterprise Linux Supplementary 5 (java-1.6.0-sun) RHSA-2010:0770 2010-10-14
Red Hat Satellite 5.4 (RHEL v.5) (java-1.6.0-ibm) RHSA-2011:0880 2011-06-16
Red Hat Enterprise Linux AS version 4 Extras (java-1.6.0-sun) RHSA-2010:0770 2010-10-14
Red Hat Enterprise Linux Supplementary (v. 6) (java-1.5.0-ibm) RHSA-2010:0873 2010-11-10
Red Hat Enterprise Linux AS version 4 Extras (java-1.6.0-ibm) RHSA-2010:0987 2010-12-15
Red Hat Enterprise Linux Supplementary 5 (java-1.6.0-ibm) RHSA-2010:0987 2010-12-15
Red Hat Enterprise Linux 5 (krb5) RHSA-2010:0423 2010-05-18

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 krb5 Not affected

Acknowledgements

Red Hat would like to thank the MIT Kerberos Team for responsibly reporting this issue. Upstream acknowledges Shawn Emery of Oracle as the original reporter.