6.7 Medium
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:N/I:N/A:C
0.007 Low
EPSS
Percentile
80.2%
CentOS Errata and Security Advisory CESA-2010:0423
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.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2010-June/078873.html
https://lists.centos.org/pipermail/centos-announce/2010-June/078874.html
https://lists.centos.org/pipermail/centos-announce/2010-May/078801.html
https://lists.centos.org/pipermail/centos-announce/2010-May/078803.html
https://lists.centos.org/pipermail/centos-announce/2010-May/078805.html
https://lists.centos.org/pipermail/centos-announce/2010-May/078806.html
Affected packages:
krb5-devel
krb5-libs
krb5-server
krb5-workstation
Upstream details at:
https://access.redhat.com/errata/RHSA-2010:0423
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 3 | i386 | krb5-devel | <ย 1.2.7-72 | krb5-devel-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-libs | <ย 1.2.7-72 | krb5-libs-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-server | <ย 1.2.7-72 | krb5-server-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-workstation | <ย 1.2.7-72 | krb5-workstation-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-devel | <ย 1.2.7-72 | krb5-devel-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-libs | <ย 1.2.7-72 | krb5-libs-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-server | <ย 1.2.7-72 | krb5-server-1.2.7-72.i386.rpm |
CentOS | 3 | i386 | krb5-workstation | <ย 1.2.7-72 | krb5-workstation-1.2.7-72.i386.rpm |
CentOS | 3 | x86_64 | krb5-devel | <ย 1.2.7-72 | krb5-devel-1.2.7-72.x86_64.rpm |
CentOS | 3 | i386 | krb5-libs | <ย 1.2.7-72 | krb5-libs-1.2.7-72.i386.rpm |