Vulnerability Monitor

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CVE-2010-1321

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.

Security Impact Summary

CVE-2010-1321 is a security vulnerability that . Impacting 7 products from mit, from debian, from canonical and 4 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2010-05-19T18:30:03.303

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

8.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-476
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application mit kerberos_5 ≤ 1.7.1 Yes
Application mit kerberos_5 < 1.8.2 Yes
Operating System debian debian_linux 5.0 Yes
Operating System debian debian_linux 6.0 Yes
Operating System canonical ubuntu_linux 6.06 Yes
Operating System canonical ubuntu_linux 8.04 Yes
Operating System canonical ubuntu_linux 9.04 Yes
Operating System canonical ubuntu_linux 9.10 Yes
Operating System canonical ubuntu_linux 10.04 Yes
Application oracle database_server - Yes
Operating System opensuse opensuse 11.0 Yes
Operating System opensuse opensuse 11.1 Yes
Operating System opensuse opensuse 11.2 Yes
Operating System opensuse opensuse 11.3 Yes
Operating System suse linux_enterprise_server 10 Yes
Operating System suse linux_enterprise_server 11 Yes
Operating System suse linux_enterprise_server 11 Yes
Operating System fedoraproject fedora 11 Yes
Operating System fedoraproject fedora 12 Yes
Operating System fedoraproject fedora 13 Yes
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mit's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.