{"id":"USN-7975-1","summary":"pyasn1 vulnerability","details":"It was discovered that pyasn1 incorrectly handled malformed RELATIVE-OIDs\nwith excessive continuation octets. An attacker could possibly use this\nissue to cause pyasn1 to consume memory, leading to a denial of service.","modified":"2026-02-10T04:50:48Z","published":"2026-01-22T13:35:04Z","related":["UBUNTU-CVE-2026-23490"],"upstream":["CVE-2026-23490","UBUNTU-CVE-2026-23490"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7975-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-23490"}],"affected":[{"package":{"name":"pyasn1","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pyasn1@0.4.8-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.8-1ubuntu0.1"}]}],"versions":["0.4.8-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.4.8-1ubuntu0.1","binary_name":"pypy-pyasn1"},{"binary_version":"0.4.8-1ubuntu0.1","binary_name":"python3-pyasn1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7975-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-23490"}]}}},{"package":{"name":"pyasn1","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/pyasn1@0.4.8-4ubuntu0.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.8-4ubuntu0.1"}]}],"versions":["0.4.8-4"],"ecosystem_specific":{"binaries":[{"binary_version":"0.4.8-4ubuntu0.1","binary_name":"python3-pyasn1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7975-1.json","cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-23490"}]}}},{"package":{"name":"pyasn1","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/pyasn1@0.6.1-1ubuntu0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1-1ubuntu0.1"}]}],"versions":["0.6.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.6.1-1ubuntu0.1","binary_name":"python3-pyasn1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7975-1.json","cves_map":{"ecosystem":"Ubuntu:25.10","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-23490"}]}}}],"schema_version":"1.7.3"}