6.8

CVE-2010-1321: canonical ubuntu_linux NULL Pointer Dereference

Modified
AliasesRHSA-2010:0423DEBIAN-CVE-2010-1321DSA-2052-1
Published 19-05-2010Last modified 07-08-2024

Vulnerability summary

CVE-2010-1321 is a medium (CVSS 6.8) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 6.88% chance of exploitation in the next 30 days, higher than 94% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
6.88%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 1
OPENSUSE-SU-2024:10004-1RHSA-2010:0770RHSA-2010:0807RHSA-2010:0873RHSA-2010:0935RHSA-2010:0987

Timeline

  1. 19-05-2010
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

6.88%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

No change 0.00 pp

From 6.88% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, authentication (CVSS vector). Other conditions: not stated in public data.

Redhat6 products
  • krb5< 0:1.2.7-72 | < 0:1.3.4-62.el4_8.2 | < 0:1.6.1-36.el5_5.4
  • krb5-debuginfo< 0:1.2.7-72 | < 0:1.3.4-62.el4_8.2 | < 0:1.6.1-36.el5_5.4
  • krb5-devel< 0:1.2.7-72 | < 0:1.3.4-62.el4_8.2 | < 0:1.6.1-36.el5_5.4
  • krb5-libs< 0:1.2.7-72 | < 0:1.3.4-62.el4_8.2 | < 0:1.6.1-36.el5_5.4
  • krb5-server< 0:1.2.7-72 | < 0:1.3.4-62.el4_8.2 | < 0:1.6.1-36.el5_5.4
Debian3 products
  • heimdal< 1.4.0~git20100605.dfsg.1-1
  • krb5< 1.6.dfsg.4~beta1-5lenny4 | < 1.8.1+dfsg-3
  • debian_linuxEOL5.0 | 6.0
Canonical1 product
Fedoraproject1 product
Mit1 product
Opensuse1 product
Oracle1 product
Suse1 product

8 vendors · 15 products

References

68 links
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