{"id":"USN-6727-2","summary":"nss regression","details":"USN-6727-1 fixed vulnerabilities in NSS. The update introduced a regression\nwhen trying to load security modules on Ubuntu 20.04 LTS and Ubuntu 22.04\nLTS. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that NSS incorrectly handled padding when checking PKCS#1\n certificates. A remote attacker could possibly use this issue to perform\n Bleichenbacher-like attacks and recover private data. This issue only\n affected Ubuntu 20.04 LTS. (CVE-2023-4421)\n \n It was discovered that NSS had a timing side-channel when performing RSA\n decryption. A remote attacker could possibly use this issue to recover\n private data. (CVE-2023-5388)\n \n It was discovered that NSS had a timing side-channel when using certain\n NIST curves. A remote attacker could possibly use this issue to recover\n private data. (CVE-2023-6135)\n \n The NSS package contained outdated CA certificates. This update refreshes\n the NSS package to version 3.98 which includes the latest CA certificate\n bundle and other security improvements.\n","modified":"2026-02-10T04:43:40Z","published":"2024-04-11T18:18:01Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6727-2"},{"type":"REPORT","url":"https://launchpad.net/bugs/2060906"}],"affected":[{"package":{"name":"nss","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.98-0ubuntu0.20.04.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.98-0ubuntu0.20.04.2"}]}],"versions":["2:3.45-1ubuntu2","2:3.47-1ubuntu1","2:3.47-1ubuntu2","2:3.48-1ubuntu1","2:3.49.1-1ubuntu1","2:3.49.1-1ubuntu1.1","2:3.49.1-1ubuntu1.2","2:3.49.1-1ubuntu1.4","2:3.49.1-1ubuntu1.5","2:3.49.1-1ubuntu1.6","2:3.49.1-1ubuntu1.7","2:3.49.1-1ubuntu1.8","2:3.49.1-1ubuntu1.9","2:3.98-0ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss3","binary_version":"2:3.98-0ubuntu0.20.04.2"},{"binary_name":"libnss3-dev","binary_version":"2:3.98-0ubuntu0.20.04.2"},{"binary_name":"libnss3-tools","binary_version":"2:3.98-0ubuntu0.20.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6727-2.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[]}}},{"package":{"name":"nss","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.98-0ubuntu0.22.04.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.98-0ubuntu0.22.04.2"}]}],"versions":["2:3.68-1ubuntu1","2:3.68-1ubuntu2","2:3.68.2-0ubuntu1","2:3.68.2-0ubuntu1.1","2:3.68.2-0ubuntu1.2","2:3.98-0ubuntu0.22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss3","binary_version":"2:3.98-0ubuntu0.22.04.2"},{"binary_name":"libnss3-dev","binary_version":"2:3.98-0ubuntu0.22.04.2"},{"binary_name":"libnss3-tools","binary_version":"2:3.98-0ubuntu0.22.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6727-2.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[]}}}],"schema_version":"1.7.3"}