USN-5079-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
Patrick Monnerat discovered that curl incorrectly handled upgrades to TLS. When receiving certain responses from servers, curl would continue without TLS even when the option to require a successful upgrade to TLS was specified. (CVE-2021-22946)
Patrick Monnerat discovered that curl incorrectly handled responses received before STARTTLS. A remote attacker could possibly use this issue to inject responses and intercept communications. (CVE-2021-22947)
{ "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" } ] }
{ "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" } ] } }
{ "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" } ] }
{ "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" } ] } }