CVE-2010-1322

Severity: medium (CVSS 6.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-10-07 · updated 2026-06-16
Weakness: CWE-20

Description

The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.

Affected products

MIT Kerberos 5: 1.8, 1.8.1, 1.8.2, 1.8.3

References

http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-006.txt
http://www.mandriva.com/security/advisories?name=MDVSA-2010:202
http://www.redhat.com/support/errata/RHSA-2010-0863.html
http://www.securityfocus.com/archive/1/514144/100/0/threaded
http://www.securityfocus.com/bid/43756
http://www.ubuntu.com/usn/USN-999-1
http://www.vupen.com/english/advisories/2010/2865
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-006.txt
http://www.mandriva.com/security/advisories?name=MDVSA-2010:202
http://www.redhat.com/support/errata/RHSA-2010-0863.html

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