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CVE-2009-3767

Publication date 23 October 2009

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
openldap 9.10 karmic
Not affected
9.04 jaunty
Not affected
8.10 intrepid
Not affected
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
openldap2 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper
Not affected
openldap2.2 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper
Fixed 2.2.26-5ubuntu2.9
openldap2.3 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy
Not affected
6.06 LTS dapper Not in release

Notes

mdeslaur

openldap in hardy and intrepid only have gnutls backend we compile jaunty-lucid with gnutls, not openssl so we're not vulnerable to this. (debian/configure.options) openldap2 in dapper has been patched with gnutls support, so not vulnerable. This is the library to which all dapper applications are linked, to not conflict with the openssl license. openldap2.2 in dapper uses openssl and is vulnerable.

References

Related Ubuntu Security Notices (USN)

    • USN-858-1
    • OpenLDAP vulnerability
    • 12 November 2009

Other references