========================================================================== Ubuntu Security Notice USN-6142-1 June 06, 2023 nghttp2 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: nghttp2 could be made to crash if it opened a specially crafted file. Software Description: - nghttp2: HTTP/2 C Library and tools Details: Gal Goldshtein discovered that nghttp2 incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libnghttp2-14 1.40.0-1ubuntu0.1 libnghttp2-dev 1.40.0-1ubuntu0.1 nghttp2 1.40.0-1ubuntu0.1 nghttp2-client 1.40.0-1ubuntu0.1 nghttp2-proxy 1.40.0-1ubuntu0.1 nghttp2-server 1.40.0-1ubuntu0.1 Ubuntu 18.04 LTS (Available with Ubuntu Pro): libnghttp2-14 1.30.0-1ubuntu1+esm1 libnghttp2-dev 1.30.0-1ubuntu1+esm1 nghttp2 1.30.0-1ubuntu1+esm1 nghttp2-client 1.30.0-1ubuntu1+esm1 nghttp2-proxy 1.30.0-1ubuntu1+esm1 nghttp2-server 1.30.0-1ubuntu1+esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro): libnghttp2-14 1.7.1-1ubuntu0.1~esm1 libnghttp2-dev 1.7.1-1ubuntu0.1~esm1 nghttp2 1.7.1-1ubuntu0.1~esm1 nghttp2-client 1.7.1-1ubuntu0.1~esm1 nghttp2-proxy 1.7.1-1ubuntu0.1~esm1 nghttp2-server 1.7.1-1ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6142-1 CVE-2020-11080 Package Information: https://launchpad.net/ubuntu/+source/nghttp2/1.40.0-1ubuntu0.1