https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 01:00:36 +0000 https://vulnerability.circl.lu/vuln/cve-2022-45061 <p>An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.</p> <p>An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.</p> https://vulnerability.circl.lu/vuln/cve-2022-45061 https://vulnerability.circl.lu/vuln/usn-5767-1 <p><strong>Affected:</strong> Ubuntu:18.04:LTS: python2.7, Ubuntu:18.04:LTS: python3.6, Ubuntu:20.04:LTS: python3.8, Ubuntu:22.04:LTS: python3.10</p> <p>Nicky Mouha discovered that Python incorrectly handled certain SHA-3 internals. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2022-37454)</p> <p>It was discovered that Python incorrectly handled certain IDNA inputs. An attacker could possibly use this issue to expose sensitive information denial of service, or cause a crash. (CVE-2022-45061)</p> <p><strong>Affected:</strong> Ubuntu:18.04:LTS: python2.7, Ubuntu:18.04:LTS: python3.6, Ubuntu:20.04:LTS: python3.8, Ubuntu:22.04:LTS: python3.10</p> <p>Nicky Mouha discovered that Python incorrectly handled certain SHA-3 internals. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2022-37454)</p> <p>It was discovered that Python incorrectly handled certain IDNA inputs. An attacker could possibly use this issue to expose sensitive information denial of service, or cause a crash. (CVE-2022-45061)</p> https://vulnerability.circl.lu/vuln/usn-5767-1