USN-5051-4: OpenSSL regression

Publication date

1 September 2021

Overview

USN-5051-2 introduced a regression in OpenSSL.

Releases


Packages

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

Details

USN-5051-2 introduced a regression in OpenSSL that affected only Ubuntu 14.04 ESM.
This update fix the regression.

Original advisory details:

Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1
strings. A remote attacker could use this issue to cause OpenSSL to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2021-3712)

USN-5051-2 introduced a regression in OpenSSL that affected only Ubuntu 14.04 ESM.
This update fix the regression.

Original advisory details:

Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1
strings. A remote attacker could use this issue to cause OpenSSL to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2021-3712)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty libssl1.0.0 –  1.0.1f-1ubuntu2.27+esm4  

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