USN-5021-1 fixed vulnerabilities in curl. This update provides the corresponding updates for Ubuntu 16.04 ESM.
Original advisory details:
Harry Sintonen and Tomas Hoger discovered that curl incorrectly handled TELNET connections when the -t option was used on the command line. Uninitialized data possibly containing sensitive information could be sent to the remote server, contrary to expectations. (CVE-2021-22898, CVE-2021-22925)
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "libcurl3": "7.47.0-1ubuntu2.19+esm3", "libcurl4-gnutls-dev": "7.47.0-1ubuntu2.19+esm3", "libcurl3-dbgsym": "7.47.0-1ubuntu2.19+esm3", "libcurl3-nss": "7.47.0-1ubuntu2.19+esm3", "libcurl4-doc": "7.47.0-1ubuntu2.19+esm3", "libcurl3-gnutls-dbgsym": "7.47.0-1ubuntu2.19+esm3", "libcurl4-openssl-dev": "7.47.0-1ubuntu2.19+esm3", "libcurl4-openssl-dev-dbgsym": "7.47.0-1ubuntu2.19+esm3", "curl-dbgsym": "7.47.0-1ubuntu2.19+esm3", "curl": "7.47.0-1ubuntu2.19+esm3", "libcurl4-nss-dev-dbgsym": "7.47.0-1ubuntu2.19+esm3", "libcurl3-gnutls": "7.47.0-1ubuntu2.19+esm3", "libcurl4-gnutls-dev-dbgsym": "7.47.0-1ubuntu2.19+esm3", "libcurl3-nss-dbgsym": "7.47.0-1ubuntu2.19+esm3", "libcurl3-dbg": "7.47.0-1ubuntu2.19+esm3", "libcurl4-nss-dev": "7.47.0-1ubuntu2.19+esm3" } ] }