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Improper Certificate Validation Affecting openldap package, versions <2.4.17-2.1

Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    0.26% (66th percentile)

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  • Snyk ID SNYK-DEBIAN8-OPENLDAP-304644
  • published 23 Oct 2009
  • disclosed 23 Oct 2009
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Introduced: 23 Oct 2009

CVE-2009-3767 Open this link in a new tab
CWE-295 Open this link in a new tab

How to fix?

Upgrade Debian:8 openldap to version 2.4.17-2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openldap package and not the openldap package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

References

CVSS Scores

version 3.1
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Snyk

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

4.3 medium
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Red Hat

3.7 low