Out-of-bounds Read Affecting krb5 package, versions <1.13.2+dfsg-3


Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    83.54% (99th percentile)

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  • Snyk ID SNYK-DEBIAN10-KRB5-395757
  • published 9 Nov 2015
  • disclosed 9 Nov 2015

How to fix?

Upgrade Debian:10 krb5 to version 1.13.2+dfsg-3 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 build_principal_va function in lib/krb5/krb/bld_princ.c in MIT Kerberos 5 (aka krb5) before 1.14 allows remote authenticated users to cause a denial of service (out-of-bounds read and KDC crash) via an initial '\0' character in a long realm field within a TGS request.

CVSS Scores

version 3.1
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Snyk

4.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
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NVD

4.3 medium
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Red Hat

4.3 medium