Improper Authentication Affecting bind9 package, versions <1:9.5.1.dfsg.P1-1


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    1.86% (89th percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-BIND9-346614
  • published 7 Jan 2009
  • disclosed 7 Jan 2009

How to fix?

Upgrade Debian:unstable bind9 to version 1:9.5.1.dfsg.P1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind9 package and not the bind9 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

BIND 9.6.0, 9.5.1, 9.5.0, 9.4.3, and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

References

CVSS Scores

version 3.1
Expand this section

NVD

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