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medium 6.8

CVE-2010-1321 json

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1…

published 16y ago modified 4mo ago also EUVD-2010-1350

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.9%
EPSS 6.9% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.

Patch / fix

  • mit kerberos_5 1.8.2
  • krb5 Debian 14, Debian 13, Debian 12 1.8.1+dfsg-3
  • heimdal Debian 14, Debian 13, Debian 12 1.4.0~git20100605.dfsg.1-1

debian advisories DEBIAN-CVE-2010-1321

  • java-1.6.0-ibm RHEL 4 EXTRAS 1:1.6.0.9.0-1jpp.3.el4
  • java-1.6.0-ibm RHEL 5 EXTRAS 1:1.6.0.9.0-1jpp.3.el5
  • java-1.6.0-ibm RHEL 6 EXTRAS 1:1.6.0.9.0-1jpp.4.el6
  • java-1.6.0-ibm-src RHEL 4 EXTRAS 1:1.6.0.9.0-1jpp.3.el4
  • java-1.6.0-ibm-src RHEL 5 EXTRAS 1:1.6.0.9.0-1jpp.3.el5
  • java-1.6.0-ibm-src RHEL 6 EXTRAS 1:1.6.0.9.0-1jpp.4.el6
  • java-1.6.0-ibm-demo RHEL 4 EXTRAS 1:1.6.0.9.0-1jpp.3.el4
  • java-1.6.0-ibm-demo RHEL 5 EXTRAS 1:1.6.0.9.0-1jpp.3.el5

red hat advisories RHSA-2010:0987RHSA-2010:0770RHSA-2010:0807RHSA-2011:0880RHSA-2011:0152RHSA-2010:0873

  • krb5 openSUSE Tumbleweed 1.15-1.1

opensuse advisories openSUSE-SU-2024:10004-1

Is CVE-2010-1321 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2010-1321 updated cvss 4.0

krb5: null pointer dereference in GSS-API library leads to DoS (MITKRB5-SA-2010-005)

  • Red Hat Desktop version 3 krb5 1.2.7-72, krb5-libs 1.2.7-72, krb5-server 1.2.7-72, krb5-workstation 1.2.7-72
    fixed: vendor fix RHSA-2010:0423
  • Red Hat Desktop version 4 Extras java-1.6.0-sun 1.6.0.22-1jpp.1.el4, java-1.6.0-ibm 1.6.0.9.0-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.7-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.8-1jpp.3.el4, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.22-1jpp.1.el4, +23 more
    fixed: vendor fix RHSA-2010:0935
  • Red Hat Enterprise Linux (v. 5 server) krb5 1.6.1-36.el5_5.4, krb5-libs 1.6.1-36.el5_5.4, krb5-server 1.6.1-36.el5_5.4, krb5-workstation 1.6.1-36.el5_5.4 Red Hat Enterprise Linux AS version 3 krb5 1.2.7-72, krb5-libs 1.2.7-72, krb5-server 1.2.7-72, krb5-workstation 1.2.7-72 Red Hat Enterprise Linux AS version 4 krb5 1.3.4-62.el4_8.2, krb5-libs 1.3.4-62.el4_8.2, krb5-server 1.3.4-62.el4_8.2, krb5-workstation 1.3.4-62.el4_8.2
    fixed: vendor fix RHSA-2010:0423
  • Red Hat Enterprise Linux AS version 4 Extras java-1.6.0-sun 1.6.0.22-1jpp.1.el4, java-1.6.0-ibm 1.6.0.9.0-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.7-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.8-1jpp.3.el4, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.22-1jpp.1.el4, +23 more
    fixed: vendor fix RHSA-2010:0935
  • Red Hat Enterprise Linux Desktop (v. 5 client) krb5 1.6.1-36.el5_5.4, krb5-libs 1.6.1-36.el5_5.4, krb5-server 1.6.1-36.el5_5.4, krb5-workstation 1.6.1-36.el5_5.4
    fixed: vendor fix RHSA-2010:0423
  • Red Hat Enterprise Linux Desktop Supplementary (v. 5) java-1.6.0-sun 1.6.0.22-1jpp.1.el5, java-1.6.0-ibm 1.6.0.9.0-1jpp.3.el5, java-1.4.2-ibm 1.4.2.13.7-1jpp.3.el5, java-1.4.2-ibm 1.4.2.13.8-1jpp.2.el5, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el5, java-1.6.0-sun-src 1.6.0.22-1jpp.1.el5, +25 more
    fixed: vendor fix RHSA-2010:0935
  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) java-1.6.0-ibm 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-src 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm-src 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-demo 1.6.0.9.0-1jpp.4.el6, java-1.6.0-ibm-jdbc 1.6.0.9.0-1jpp.4.el6, +4 more
    fixed: vendor fix RHSA-2010:0987
  • Red Hat Enterprise Linux Desktop version 4 krb5 1.3.4-62.el4_8.2, krb5-libs 1.3.4-62.el4_8.2, krb5-server 1.3.4-62.el4_8.2, krb5-workstation 1.3.4-62.el4_8.2 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) krb5 1.6.1-36.el5_5.4, krb5-server 1.6.1-36.el5_5.4 Red Hat Enterprise Linux ES version 3 krb5 1.2.7-72, krb5-libs 1.2.7-72, krb5-server 1.2.7-72, krb5-workstation 1.2.7-72 Red Hat Enterprise Linux ES version 4 krb5 1.3.4-62.el4_8.2, krb5-libs 1.3.4-62.el4_8.2, krb5-server 1.3.4-62.el4_8.2, krb5-workstation 1.3.4-62.el4_8.2
    fixed: vendor fix RHSA-2010:0423
show 8 more
  • Red Hat Enterprise Linux ES version 4 Extras java-1.6.0-sun 1.6.0.22-1jpp.1.el4, java-1.6.0-ibm 1.6.0.9.0-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.7-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.8-1jpp.3.el4, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.22-1jpp.1.el4, +23 more
    fixed: vendor fix RHSA-2010:0935
  • Red Hat Enterprise Linux HPC Node Supplementary (v. 6) java-1.6.0-ibm 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-src 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm-src 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-demo 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm-demo 1.5.0.12.2-1jpp.1.el6, +2 more
    fixed: vendor fix RHSA-2010:0987
  • Red Hat Enterprise Linux Server Supplementary (v. 5) java-1.6.0-sun 1.6.0.22-1jpp.1.el5, java-1.6.0-ibm 1.6.0.9.0-1jpp.3.el5, java-1.4.2-ibm 1.4.2.13.7-1jpp.3.el5, java-1.4.2-ibm 1.4.2.13.8-1jpp.2.el5, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el5, java-1.6.0-sun-src 1.6.0.22-1jpp.1.el5, +25 more
    fixed: vendor fix RHSA-2010:0935
  • Red Hat Enterprise Linux Server Supplementary (v. 6) java-1.6.0-ibm 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-src 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm-src 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-demo 1.6.0.9.0-1jpp.4.el6, java-1.6.0-ibm-jdbc 1.6.0.9.0-1jpp.4.el6, +4 more Red Hat Enterprise Linux Workstation Supplementary (v. 6) java-1.6.0-ibm 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-src 1.6.0.9.0-1jpp.4.el6, java-1.5.0-ibm-src 1.5.0.12.2-1jpp.1.el6, java-1.6.0-ibm-demo 1.6.0.9.0-1jpp.4.el6, java-1.6.0-ibm-jdbc 1.6.0.9.0-1jpp.4.el6, +4 more
    fixed: vendor fix RHSA-2010:0987
  • Red Hat Enterprise Linux WS version 3 krb5 1.2.7-72, krb5-libs 1.2.7-72, krb5-server 1.2.7-72, krb5-workstation 1.2.7-72 Red Hat Enterprise Linux WS version 4 krb5 1.3.4-62.el4_8.2, krb5-libs 1.3.4-62.el4_8.2, krb5-server 1.3.4-62.el4_8.2, krb5-workstation 1.3.4-62.el4_8.2
    fixed: vendor fix RHSA-2010:0423
  • Red Hat Enterprise Linux WS version 4 Extras java-1.6.0-sun 1.6.0.22-1jpp.1.el4, java-1.6.0-ibm 1.6.0.9.0-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.7-1jpp.3.el4, java-1.4.2-ibm 1.4.2.13.8-1jpp.3.el4, java-1.5.0-ibm 1.5.0.12.2-1jpp.1.el4, java-1.6.0-sun-src 1.6.0.22-1jpp.1.el4, +23 more
    fixed: vendor fix RHSA-2010:0935
  • Red Hat Satellite 5.4 (RHEL v.5) java-1.6.0-ibm 1.6.0.9.1-1jpp.1.el5
    fixed: vendor fix RHSA-2011:0880
  • Red Hat Enterprise Linux 6 krb5, libkadm5, krb5-libs, krb5-server, krb5-server-ldap, krb5-workstation, +1 more
    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

6.88% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C

Classification

Weakness
Technology feeds

References

Sources

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