RedHat: RHSA-2010-0423:01 Important: krb5 security update
Summary
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).
A NULL pointer dereference flaw was discovered in the MIT Kerberos Generic
Security Service Application Program Interface (GSS-API) library. A remote,
authenticated attacker could use this flaw to crash any server application
using the GSS-API authentication mechanism, by sending a specially-crafted
GSS-API token with a missing checksum field. (CVE-2010-1321)
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.
All krb5 users should upgrade to these updated packages, which contain a
backported patch to correct this issue. All running services using the MIT
Kerberos libraries must be restarted for the update to take effect.
Summary
Solution
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
References
https://www.redhat.com/security/data/cve/CVE-2010-1321.html http://www.redhat.com/security/updates/classification/#important http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2010-005.txt
Package List
Red Hat Enterprise Linux AS version 3:
Source:
i386:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-devel-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-server-1.2.7-72.i386.rpm
krb5-workstation-1.2.7-72.i386.rpm
ia64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.ia64.rpm
krb5-devel-1.2.7-72.ia64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.ia64.rpm
krb5-server-1.2.7-72.ia64.rpm
krb5-workstation-1.2.7-72.ia64.rpm
ppc:
krb5-debuginfo-1.2.7-72.ppc.rpm
krb5-debuginfo-1.2.7-72.ppc64.rpm
krb5-devel-1.2.7-72.ppc.rpm
krb5-libs-1.2.7-72.ppc.rpm
krb5-libs-1.2.7-72.ppc64.rpm
krb5-server-1.2.7-72.ppc.rpm
krb5-workstation-1.2.7-72.ppc.rpm
s390:
krb5-debuginfo-1.2.7-72.s390.rpm
krb5-devel-1.2.7-72.s390.rpm
krb5-libs-1.2.7-72.s390.rpm
krb5-server-1.2.7-72.s390.rpm
krb5-workstation-1.2.7-72.s390.rpm
s390x:
krb5-debuginfo-1.2.7-72.s390.rpm
krb5-debuginfo-1.2.7-72.s390x.rpm
krb5-devel-1.2.7-72.s390x.rpm
krb5-libs-1.2.7-72.s390.rpm
krb5-libs-1.2.7-72.s390x.rpm
krb5-server-1.2.7-72.s390x.rpm
krb5-workstation-1.2.7-72.s390x.rpm
x86_64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.x86_64.rpm
krb5-devel-1.2.7-72.x86_64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.x86_64.rpm
krb5-server-1.2.7-72.x86_64.rpm
krb5-workstation-1.2.7-72.x86_64.rpm
Red Hat Desktop version 3:
Source:
i386:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-devel-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-server-1.2.7-72.i386.rpm
krb5-workstation-1.2.7-72.i386.rpm
x86_64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.x86_64.rpm
krb5-devel-1.2.7-72.x86_64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.x86_64.rpm
krb5-server-1.2.7-72.x86_64.rpm
krb5-workstation-1.2.7-72.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
Source:
i386:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-devel-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-server-1.2.7-72.i386.rpm
krb5-workstation-1.2.7-72.i386.rpm
ia64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.ia64.rpm
krb5-devel-1.2.7-72.ia64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.ia64.rpm
krb5-server-1.2.7-72.ia64.rpm
krb5-workstation-1.2.7-72.ia64.rpm
x86_64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.x86_64.rpm
krb5-devel-1.2.7-72.x86_64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.x86_64.rpm
krb5-server-1.2.7-72.x86_64.rpm
krb5-workstation-1.2.7-72.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
Source:
i386:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-devel-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-server-1.2.7-72.i386.rpm
krb5-workstation-1.2.7-72.i386.rpm
ia64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.ia64.rpm
krb5-devel-1.2.7-72.ia64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.ia64.rpm
krb5-server-1.2.7-72.ia64.rpm
krb5-workstation-1.2.7-72.ia64.rpm
x86_64:
krb5-debuginfo-1.2.7-72.i386.rpm
krb5-debuginfo-1.2.7-72.x86_64.rpm
krb5-devel-1.2.7-72.x86_64.rpm
krb5-libs-1.2.7-72.i386.rpm
krb5-libs-1.2.7-72.x86_64.rpm
krb5-server-1.2.7-72.x86_64.rpm
krb5-workstation-1.2.7-72.x86_64.rpm
Red Hat Enterprise Linux AS version 4:
Source:
i386:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-devel-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-server-1.3.4-62.el4_8.2.i386.rpm
krb5-workstation-1.3.4-62.el4_8.2.i386.rpm
ia64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.ia64.rpm
krb5-devel-1.3.4-62.el4_8.2.ia64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.ia64.rpm
krb5-server-1.3.4-62.el4_8.2.ia64.rpm
krb5-workstation-1.3.4-62.el4_8.2.ia64.rpm
ppc:
krb5-debuginfo-1.3.4-62.el4_8.2.ppc.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.ppc64.rpm
krb5-devel-1.3.4-62.el4_8.2.ppc.rpm
krb5-libs-1.3.4-62.el4_8.2.ppc.rpm
krb5-libs-1.3.4-62.el4_8.2.ppc64.rpm
krb5-server-1.3.4-62.el4_8.2.ppc.rpm
krb5-workstation-1.3.4-62.el4_8.2.ppc.rpm
s390:
krb5-debuginfo-1.3.4-62.el4_8.2.s390.rpm
krb5-devel-1.3.4-62.el4_8.2.s390.rpm
krb5-libs-1.3.4-62.el4_8.2.s390.rpm
krb5-server-1.3.4-62.el4_8.2.s390.rpm
krb5-workstation-1.3.4-62.el4_8.2.s390.rpm
s390x:
krb5-debuginfo-1.3.4-62.el4_8.2.s390.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.s390x.rpm
krb5-devel-1.3.4-62.el4_8.2.s390x.rpm
krb5-libs-1.3.4-62.el4_8.2.s390.rpm
krb5-libs-1.3.4-62.el4_8.2.s390x.rpm
krb5-server-1.3.4-62.el4_8.2.s390x.rpm
krb5-workstation-1.3.4-62.el4_8.2.s390x.rpm
x86_64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.x86_64.rpm
krb5-devel-1.3.4-62.el4_8.2.x86_64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.x86_64.rpm
krb5-server-1.3.4-62.el4_8.2.x86_64.rpm
krb5-workstation-1.3.4-62.el4_8.2.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-devel-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-server-1.3.4-62.el4_8.2.i386.rpm
krb5-workstation-1.3.4-62.el4_8.2.i386.rpm
x86_64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.x86_64.rpm
krb5-devel-1.3.4-62.el4_8.2.x86_64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.x86_64.rpm
krb5-server-1.3.4-62.el4_8.2.x86_64.rpm
krb5-workstation-1.3.4-62.el4_8.2.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
i386:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-devel-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-server-1.3.4-62.el4_8.2.i386.rpm
krb5-workstation-1.3.4-62.el4_8.2.i386.rpm
ia64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.ia64.rpm
krb5-devel-1.3.4-62.el4_8.2.ia64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.ia64.rpm
krb5-server-1.3.4-62.el4_8.2.ia64.rpm
krb5-workstation-1.3.4-62.el4_8.2.ia64.rpm
x86_64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.x86_64.rpm
krb5-devel-1.3.4-62.el4_8.2.x86_64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.x86_64.rpm
krb5-server-1.3.4-62.el4_8.2.x86_64.rpm
krb5-workstation-1.3.4-62.el4_8.2.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source:
i386:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-devel-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-server-1.3.4-62.el4_8.2.i386.rpm
krb5-workstation-1.3.4-62.el4_8.2.i386.rpm
ia64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.ia64.rpm
krb5-devel-1.3.4-62.el4_8.2.ia64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.ia64.rpm
krb5-server-1.3.4-62.el4_8.2.ia64.rpm
krb5-workstation-1.3.4-62.el4_8.2.ia64.rpm
x86_64:
krb5-debuginfo-1.3.4-62.el4_8.2.i386.rpm
krb5-debuginfo-1.3.4-62.el4_8.2.x86_64.rpm
krb5-devel-1.3.4-62.el4_8.2.x86_64.rpm
krb5-libs-1.3.4-62.el4_8.2.i386.rpm
krb5-libs-1.3.4-62.el4_8.2.x86_64.rpm
krb5-server-1.3.4-62.el4_8.2.x86_64.rpm
krb5-workstation-1.3.4-62.el4_8.2.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-devel-1.6.1-36.el5_5.4.i386.rpm
krb5-libs-1.6.1-36.el5_5.4.i386.rpm
krb5-server-1.6.1-36.el5_5.4.i386.rpm
krb5-workstation-1.6.1-36.el5_5.4.i386.rpm
x86_64:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-debuginfo-1.6.1-36.el5_5.4.x86_64.rpm
krb5-libs-1.6.1-36.el5_5.4.i386.rpm
krb5-libs-1.6.1-36.el5_5.4.x86_64.rpm
krb5-workstation-1.6.1-36.el5_5.4.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-devel-1.6.1-36.el5_5.4.i386.rpm
krb5-server-1.6.1-36.el5_5.4.i386.rpm
x86_64:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-debuginfo-1.6.1-36.el5_5.4.x86_64.rpm
krb5-devel-1.6.1-36.el5_5.4.i386.rpm
krb5-devel-1.6.1-36.el5_5.4.x86_64.rpm
krb5-server-1.6.1-36.el5_5.4.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-devel-1.6.1-36.el5_5.4.i386.rpm
krb5-libs-1.6.1-36.el5_5.4.i386.rpm
krb5-server-1.6.1-36.el5_5.4.i386.rpm
krb5-workstation-1.6.1-36.el5_5.4.i386.rpm
ia64:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-debuginfo-1.6.1-36.el5_5.4.ia64.rpm
krb5-devel-1.6.1-36.el5_5.4.ia64.rpm
krb5-libs-1.6.1-36.el5_5.4.i386.rpm
krb5-libs-1.6.1-36.el5_5.4.ia64.rpm
krb5-server-1.6.1-36.el5_5.4.ia64.rpm
krb5-workstation-1.6.1-36.el5_5.4.ia64.rpm
ppc:
krb5-debuginfo-1.6.1-36.el5_5.4.ppc.rpm
krb5-debuginfo-1.6.1-36.el5_5.4.ppc64.rpm
krb5-devel-1.6.1-36.el5_5.4.ppc.rpm
krb5-devel-1.6.1-36.el5_5.4.ppc64.rpm
krb5-libs-1.6.1-36.el5_5.4.ppc.rpm
krb5-libs-1.6.1-36.el5_5.4.ppc64.rpm
krb5-server-1.6.1-36.el5_5.4.ppc.rpm
krb5-workstation-1.6.1-36.el5_5.4.ppc.rpm
s390x:
krb5-debuginfo-1.6.1-36.el5_5.4.s390.rpm
krb5-debuginfo-1.6.1-36.el5_5.4.s390x.rpm
krb5-devel-1.6.1-36.el5_5.4.s390.rpm
krb5-devel-1.6.1-36.el5_5.4.s390x.rpm
krb5-libs-1.6.1-36.el5_5.4.s390.rpm
krb5-libs-1.6.1-36.el5_5.4.s390x.rpm
krb5-server-1.6.1-36.el5_5.4.s390x.rpm
krb5-workstation-1.6.1-36.el5_5.4.s390x.rpm
x86_64:
krb5-debuginfo-1.6.1-36.el5_5.4.i386.rpm
krb5-debuginfo-1.6.1-36.el5_5.4.x86_64.rpm
krb5-devel-1.6.1-36.el5_5.4.i386.rpm
krb5-devel-1.6.1-36.el5_5.4.x86_64.rpm
krb5-libs-1.6.1-36.el5_5.4.i386.rpm
krb5-libs-1.6.1-36.el5_5.4.x86_64.rpm
krb5-server-1.6.1-36.el5_5.4.x86_64.rpm
krb5-workstation-1.6.1-36.el5_5.4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
Topic
Updated krb5 packages that fix one security issue are now available for RedHat Enterprise Linux 3, 4, and 5.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.
Topic
Relevant Releases Architectures
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Bugs Fixed
582466 - CVE-2010-1321 krb5: null pointer dereference in GSS-API library leads to DoS (MITKRB5-SA-2010-005)