USN-3611-2: OpenSSL vulnerabilities

Releases

• Ubuntu 12.04

Packages

• openssl - Secure Socket Layer (SSL) cryptographic library and tools

Details

USN-3611-1 fixed a vulnerability in OpenSSL. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that OpenSSL incorrectly parsed the IPAddressFamily
extension in X.509 certificates, resulting in an erroneous display of the
certificate in text format. (CVE-2017-3735)

It was discovered that OpenSSL incorrectly handled certain ASN.1 types. A
remote attacker could possibly use this issue to cause a denial of service.
(CVE-2018-0739)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04

• libssl1.0.0 - 1.0.1-4ubuntu5.40
• openssl - 1.0.1-4ubuntu5.40

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

• CVE-2017-3735
• CVE-2018-0739

Related notices

• USN-3475-1: libssl1.0.0-udeb, libssl-dev, libssl-doc, openssl, libcrypto1.0.0-udeb, libssl1.0.0
• USN-3611-1: libssl1.0.0-udeb, libssl-dev, libssl-doc, openssl, libcrypto1.0.0-udeb, libssl1.0.0