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Fencer Intel
medium 6.5

CVE-2010-1322 json

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…

published 16y ago modified 4mo ago also EUVD-2010-1351

cvss
6.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.0%
EPSS 3.0% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

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.

Patch / fix

  • krb5 Debian 14, Debian 13, Debian 12 1.8.3+dfsg-2

debian advisories DEBIAN-CVE-2010-1322

  • krb5 RHEL 6 1.8.2-3.el6_0.1
  • krb5-libs RHEL 6 1.8.2-3.el6_0.1
  • krb5-server RHEL 6 1.8.2-3.el6_0.1
  • krb5-server-ldap RHEL 6 1.8.2-3.el6_0.1
  • krb5-workstation RHEL 6 1.8.2-3.el6_0.1
  • krb5-pkinit-openssl RHEL 6 1.8.2-3.el6_0.1

red hat advisories RHSA-2010:0863

  • krb5 openSUSE Tumbleweed 1.15-1.1

opensuse advisories openSUSE-SU-2024:10004-1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-1322 updated cvss 6.5

krb5: KDC uninitialized pointer crash in authorization data handling (MITKRB5-SA-2010-006)

  • Red Hat Enterprise Linux Desktop (v. 6) krb5 1.8.2-3.el6_0.1, krb5-libs 1.8.2-3.el6_0.1, krb5-workstation 1.8.2-3.el6_0.1, krb5-pkinit-openssl 1.8.2-3.el6_0.1 Red Hat Enterprise Linux Desktop Optional (v. 6) krb5 1.8.2-3.el6_0.1, krb5-server 1.8.2-3.el6_0.1, krb5-server-ldap 1.8.2-3.el6_0.1 Red Hat Enterprise Linux HPC Node (v. 6) krb5 1.8.2-3.el6_0.1, krb5-libs 1.8.2-3.el6_0.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) krb5 1.8.2-3.el6_0.1, krb5-server 1.8.2-3.el6_0.1, krb5-server-ldap 1.8.2-3.el6_0.1, krb5-workstation 1.8.2-3.el6_0.1, krb5-pkinit-openssl 1.8.2-3.el6_0.1 Red Hat Enterprise Linux Server (v. 6) krb5 1.8.2-3.el6_0.1, krb5-libs 1.8.2-3.el6_0.1, krb5-server 1.8.2-3.el6_0.1, krb5-server-ldap 1.8.2-3.el6_0.1, krb5-workstation 1.8.2-3.el6_0.1, krb5-pkinit-openssl 1.8.2-3.el6_0.1 Red Hat Enterprise Linux Workstation (v. 6) krb5 1.8.2-3.el6_0.1, krb5-libs 1.8.2-3.el6_0.1, krb5-server 1.8.2-3.el6_0.1, krb5-server-ldap 1.8.2-3.el6_0.1, krb5-workstation 1.8.2-3.el6_0.1, krb5-pkinit-openssl 1.8.2-3.el6_0.1
    fixed: vendor fix RHSA-2010:0863
  • Red Hat Enterprise Linux 4 krb5 Red Hat Enterprise Linux 5 krb5
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.04% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.