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Access Restriction Bypass Affecting krb5 package, versions <1.6.dfsg.1-7

Severity

 Recommended
0.0
high
0
10

Based on Debian security rating

    Threat Intelligence

    EPSS
    31.64% (98th percentile)

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  • Snyk ID SNYK-DEBIAN10-KRB5-396013
  • published 5 Sep 2007
  • disclosed 5 Sep 2007
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Introduced: 5 Sep 2007

CVE-2007-4000 Open this link in a new tab
CWE-264 Open this link in a new tab

How to fix?

Upgrade Debian:10 krb5 to version 1.6.dfsg.1-7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream krb5 package and not the krb5 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The kadm5_modify_policy_internal function in lib/kadm5/srv/svr_policy.c in the Kerberos administration daemon (kadmind) in MIT Kerberos 5 (krb5) 1.5 through 1.6.2 does not properly check return values when the policy does not exist, which might allow remote authenticated users with the "modify policy" privilege to execute arbitrary code via unspecified vectors that trigger a write to an uninitialized pointer.

References

CVSS Scores

version 3.1
Expand this section

NVD

8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High