Ubuntu security

USN-5256-1: uriparser vulnerabilities It was discovered that uriparser incorrectly handled certain memory operations. An attacker could use this to cause a denial of service. (CVE-2021-46141, CVE-2021-46142) Source: USN-5256-1: uriparser vulnerabilities

USN-5510-2: X.Org X Server vulnerabilities USN-5510-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain inputs. An attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code and escalate privileges. Source: USN-5510-2: X.Org X Server vulnerabilities

USN-5510-1: X.Org X Server vulnerabilities Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain inputs. An attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code and escalate privileges. Source: USN-5510-1: X.Org X Server vulnerabilities

USN-5503-2: GnuPG vulnerability USN-5503-1 fixed a vulnerability in GnuPG. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Demi Marie Obenour discovered that GnuPG incorrectly handled injection in the status message. A remote attacker could possibly use this issue to forge signatures. Source: USN-5503-2: GnuPG vulnerability

USN-5508-1: Python LDAP vulnerability It was discovered that Python LDAP incorrectly handled certain regular expressions. An remote attacker could possibly use this issue to cause a denial of service. Source: USN-5508-1: Python LDAP vulnerability