CVE-2013-1416: Null Pointer Dereference
First published: Fri Apr 19 2013(Updated: )
The prep_reprocess_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.5 does not properly perform service-principal realm referral, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS-REQ request.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MIT Kerberos 5 Application | <1.10.5 | |
| openSUSE | =11.4 | |
| openSUSE | =12.1 | |
| openSUSE | =12.2 | |
| openSUSE | =12.3 | |
| Fedora | =17 | |
| Fedora | =18 | |
| Red Hat Enterprise Linux Desktop | =6.0 | |
| redhat enterprise Linux eus | =6.4 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Red Hat Enterprise Linux Server | =6.4 | |
| Red Hat Enterprise Linux Workstation | =6.0 |
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Reference Links
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=7600
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102058.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102074.html
- http://lists.opensuse.org/opensuse-updates/2013-05/msg00011.html
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00041.html
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00102.html
- http://rhn.redhat.com/errata/RHSA-2013-0748.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:157
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:158
- https://github.com/krb5/krb5/commit/8ee70ec63931d1e38567905387ab9b1d45734d81
Frequently Asked Questions
What is the severity of CVE-2013-1416?
CVE-2013-1416 is considered a denial of service vulnerability due to a null pointer dereference that can lead to a daemon crash.
How do I fix CVE-2013-1416?
To fix CVE-2013-1416, upgrade to MIT Kerberos 5 version 1.10.5 or later.
Which software is affected by CVE-2013-1416?
CVE-2013-1416 affects multiple versions of MIT Kerberos 5 and several versions of openSUSE and Fedora.
Can CVE-2013-1416 be exploited remotely?
Yes, CVE-2013-1416 can be exploited by remote authenticated users to cause a denial of service.
What does CVE-2013-1416 allow attackers to do?
CVE-2013-1416 allows attackers to cause a denial of service by crashing the Key Distribution Center (KDC) daemon.
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- vendor/opensuse
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- version/opensuse/11.4
- version/opensuse/12.1
- version/opensuse/12.2
- version/opensuse/12.3
- vendor/fedoraproject
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- version/fedora/17
- version/fedora/18
- vendor/redhat
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- version/red hat enterprise linux desktop/6.0
- canonical/redhat enterprise linux eus
- version/redhat enterprise linux eus/6.4
- canonical/red hat enterprise linux server
- version/red hat enterprise linux server/6.0
- version/red hat enterprise linux server/6.4
- canonical/red hat enterprise linux workstation
- version/red hat enterprise linux workstation/6.0