{"id":"USN-5079-2","summary":"curl vulnerabilities","details":"USN-5079-1 fixed several vulnerabilities in curl. This update provides\nthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n Patrick Monnerat discovered that curl incorrectly handled upgrades to TLS.\n When receiving certain responses from servers, curl would continue without\n TLS even when the option to require a successful upgrade to TLS was\n specified. (CVE-2021-22946)\n \n Patrick Monnerat discovered that curl incorrectly handled responses\n received before STARTTLS. A remote attacker could possibly use this issue\n to inject responses and intercept communications. (CVE-2021-22947)\n","modified":"2026-02-10T04:42:19Z","published":"2021-09-15T12:34:55Z","related":["UBUNTU-CVE-2021-22946","UBUNTU-CVE-2021-22947"],"upstream":["CVE-2021-22946","CVE-2021-22947","UBUNTU-CVE-2021-22946","UBUNTU-CVE-2021-22947"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5079-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-22946"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-22947"}],"affected":[{"package":{"name":"curl","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/curl@7.35.0-1ubuntu2.20+esm8?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.35.0-1ubuntu2.20+esm8"}]}],"versions":["7.32.0-1ubuntu1","7.33.0-1ubuntu1","7.34.0-1ubuntu1","7.35.0-1ubuntu1","7.35.0-1ubuntu2","7.35.0-1ubuntu2.1","7.35.0-1ubuntu2.2","7.35.0-1ubuntu2.3","7.35.0-1ubuntu2.5","7.35.0-1ubuntu2.6","7.35.0-1ubuntu2.7","7.35.0-1ubuntu2.8","7.35.0-1ubuntu2.9","7.35.0-1ubuntu2.10","7.35.0-1ubuntu2.11","7.35.0-1ubuntu2.12","7.35.0-1ubuntu2.13","7.35.0-1ubuntu2.14","7.35.0-1ubuntu2.15","7.35.0-1ubuntu2.16","7.35.0-1ubuntu2.17","7.35.0-1ubuntu2.19","7.35.0-1ubuntu2.20","7.35.0-1ubuntu2.20+esm2","7.35.0-1ubuntu2.20+esm3","7.35.0-1ubuntu2.20+esm4","7.35.0-1ubuntu2.20+esm5","7.35.0-1ubuntu2.20+esm6","7.35.0-1ubuntu2.20+esm7"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"curl"},{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"libcurl3"},{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"libcurl3-gnutls"},{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"libcurl3-nss"},{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"libcurl4-gnutls-dev"},{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"libcurl4-nss-dev"},{"binary_version":"7.35.0-1ubuntu2.20+esm8","binary_name":"libcurl4-openssl-dev"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-22946"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-22947"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5079-2.json"}},{"package":{"name":"curl","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/curl@7.47.0-1ubuntu2.19+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.47.0-1ubuntu2.19+esm1"}]}],"versions":["7.43.0-1ubuntu2","7.45.0-1ubuntu1","7.46.0-1ubuntu1","7.47.0-1ubuntu1","7.47.0-1ubuntu2","7.47.0-1ubuntu2.1","7.47.0-1ubuntu2.2","7.47.0-1ubuntu2.3","7.47.0-1ubuntu2.4","7.47.0-1ubuntu2.5","7.47.0-1ubuntu2.6","7.47.0-1ubuntu2.7","7.47.0-1ubuntu2.8","7.47.0-1ubuntu2.9","7.47.0-1ubuntu2.11","7.47.0-1ubuntu2.12","7.47.0-1ubuntu2.13","7.47.0-1ubuntu2.14","7.47.0-1ubuntu2.15","7.47.0-1ubuntu2.16","7.47.0-1ubuntu2.18","7.47.0-1ubuntu2.19"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"curl"},{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"libcurl3"},{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"libcurl3-gnutls"},{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"libcurl3-nss"},{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"libcurl4-gnutls-dev"},{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"libcurl4-nss-dev"},{"binary_version":"7.47.0-1ubuntu2.19+esm1","binary_name":"libcurl4-openssl-dev"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-22946"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-22947"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5079-2.json"}}],"schema_version":"1.7.3"}