CVE-2015-0205

Publication date 8 January 2015

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.

Read the notes from the security team

Status

Package Ubuntu Release Status
openssl 14.10 utopic
Fixed 1.0.1f-1ubuntu9.1
14.04 LTS trusty
Fixed 1.0.1f-1ubuntu2.8
12.04 LTS precise
Not affected
10.04 LTS lucid
Not affected
openssl098 14.10 utopic
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release

Notes

mdeslaur

precise isn't actually affected, as the code used to be wrong, resulting in a no-op, and having the same result as this security fix. See the following commit: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=c2770c0e0e0da5f447227553c248f9a94504ee4e

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openssl

References

Related Ubuntu Security Notices (USN)

    • USN-2459-1
    • OpenSSL vulnerabilities
    • 12 January 2015

Other references