{"id":"UBUNTU-CVE-2020-29651","details":"A denial of service via regular expression in the py.path.svnwc component of py (aka python-py) through 1.9.0 could be used by attackers to cause a compute-time denial of service attack by supplying malicious input to the blame functionality.","modified":"2026-02-04T02:31:45.421720Z","published":"2020-12-09T07:15:00Z","related":["USN-5138-1"],"upstream":["CVE-2020-29651"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-29651"},{"type":"REPORT","url":"https://github.com/pytest-dev/py/issues/256"},{"type":"REPORT","url":"https://github.com/pytest-dev/py/pull/257"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5138-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-29651"}],"affected":[{"package":{"name":"python-py","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/python-py@1.4.31-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.30-2","1.4.31-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python-py","binary_version":"1.4.31-1"},{"binary_name":"python3-py","binary_version":"1.4.31-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29651.json"}},{"package":{"name":"python-py","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-py@1.5.2-1ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.2-1ubuntu0.1"}]}],"versions":["1.4.34-2ubuntu1","1.4.34-3","1.5.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"pypy-py","binary_version":"1.5.2-1ubuntu0.1"},{"binary_version":"1.5.2-1ubuntu0.1","binary_name":"python-py"},{"binary_name":"python3-py","binary_version":"1.5.2-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29651.json"}},{"package":{"name":"python-py","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-py@1.8.1-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.1-1ubuntu0.1"}]}],"versions":["1.8.0-1","1.8.0-1build2","1.8.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"pypy-py","binary_version":"1.8.1-1ubuntu0.1"},{"binary_name":"python-py","binary_version":"1.8.1-1ubuntu0.1"},{"binary_name":"python3-py","binary_version":"1.8.1-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29651.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}