When curl < 7.84.0 does FTP transfers secured by krb5, it handles message verification failures wrongly. This flaw makes it possible for a Man-In-The-Middle attack to go unnoticed and even allows it to inject data to the client.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "curl-udeb": "7.35.0-1ubuntu2.20+esm11", "libcurl3": "7.35.0-1ubuntu2.20+esm11", "libcurl4-gnutls-dev": "7.35.0-1ubuntu2.20+esm11", "libcurl3-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl3-nss": "7.35.0-1ubuntu2.20+esm11", "libcurl4-doc": "7.35.0-1ubuntu2.20+esm11", "libcurl3-udeb-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl3-gnutls-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl4-openssl-dev": "7.35.0-1ubuntu2.20+esm11", "libcurl4-openssl-dev-dbgsym": "7.35.0-1ubuntu2.20+esm11", "curl-dbgsym": "7.35.0-1ubuntu2.20+esm11", "curl": "7.35.0-1ubuntu2.20+esm11", "libcurl3-udeb": "7.35.0-1ubuntu2.20+esm11", "curl-udeb-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl4-nss-dev-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl3-gnutls": "7.35.0-1ubuntu2.20+esm11", "libcurl4-gnutls-dev-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl3-nss-dbgsym": "7.35.0-1ubuntu2.20+esm11", "libcurl3-dbg": "7.35.0-1ubuntu2.20+esm11", "libcurl4-nss-dev": "7.35.0-1ubuntu2.20+esm11" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "libcurl3": "7.47.0-1ubuntu2.19+esm4", "libcurl4-gnutls-dev": "7.47.0-1ubuntu2.19+esm4", "libcurl3-dbgsym": "7.47.0-1ubuntu2.19+esm4", "libcurl3-nss": "7.47.0-1ubuntu2.19+esm4", "libcurl4-doc": "7.47.0-1ubuntu2.19+esm4", "libcurl3-gnutls-dbgsym": "7.47.0-1ubuntu2.19+esm4", "libcurl4-openssl-dev": "7.47.0-1ubuntu2.19+esm4", "libcurl4-openssl-dev-dbgsym": "7.47.0-1ubuntu2.19+esm4", "curl-dbgsym": "7.47.0-1ubuntu2.19+esm4", "curl": "7.47.0-1ubuntu2.19+esm4", "libcurl4-nss-dev-dbgsym": "7.47.0-1ubuntu2.19+esm4", "libcurl3-gnutls": "7.47.0-1ubuntu2.19+esm4", "libcurl4-gnutls-dev-dbgsym": "7.47.0-1ubuntu2.19+esm4", "libcurl3-nss-dbgsym": "7.47.0-1ubuntu2.19+esm4", "libcurl3-dbg": "7.47.0-1ubuntu2.19+esm4", "libcurl4-nss-dev": "7.47.0-1ubuntu2.19+esm4" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "curl-dbgsym": "7.58.0-2ubuntu3.19", "curl": "7.58.0-2ubuntu3.19", "libcurl4": "7.58.0-2ubuntu3.19", "libcurl4-gnutls-dev": "7.58.0-2ubuntu3.19", "libcurl4-dbgsym": "7.58.0-2ubuntu3.19", "libcurl3-nss": "7.58.0-2ubuntu3.19", "libcurl4-doc": "7.58.0-2ubuntu3.19", "libcurl3-nss-dbgsym": "7.58.0-2ubuntu3.19", "libcurl3-gnutls": "7.58.0-2ubuntu3.19", "libcurl3-gnutls-dbgsym": "7.58.0-2ubuntu3.19", "libcurl4-openssl-dev": "7.58.0-2ubuntu3.19", "libcurl4-nss-dev": "7.58.0-2ubuntu3.19" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "curl-dbgsym": "7.68.0-1ubuntu2.12", "curl": "7.68.0-1ubuntu2.12", "libcurl4": "7.68.0-1ubuntu2.12", "libcurl4-gnutls-dev": "7.68.0-1ubuntu2.12", "libcurl4-dbgsym": "7.68.0-1ubuntu2.12", "libcurl3-nss": "7.68.0-1ubuntu2.12", "libcurl4-doc": "7.68.0-1ubuntu2.12", "libcurl3-nss-dbgsym": "7.68.0-1ubuntu2.12", "libcurl3-gnutls": "7.68.0-1ubuntu2.12", "libcurl3-gnutls-dbgsym": "7.68.0-1ubuntu2.12", "libcurl4-openssl-dev": "7.68.0-1ubuntu2.12", "libcurl4-nss-dev": "7.68.0-1ubuntu2.12" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "curl-dbgsym": "7.81.0-1ubuntu1.3", "curl": "7.81.0-1ubuntu1.3", "libcurl4": "7.81.0-1ubuntu1.3", "libcurl4-gnutls-dev": "7.81.0-1ubuntu1.3", "libcurl4-dbgsym": "7.81.0-1ubuntu1.3", "libcurl3-nss": "7.81.0-1ubuntu1.3", "libcurl4-doc": "7.81.0-1ubuntu1.3", "libcurl3-nss-dbgsym": "7.81.0-1ubuntu1.3", "libcurl3-gnutls": "7.81.0-1ubuntu1.3", "libcurl3-gnutls-dbgsym": "7.81.0-1ubuntu1.3", "libcurl4-openssl-dev": "7.81.0-1ubuntu1.3", "libcurl4-nss-dev": "7.81.0-1ubuntu1.3" } ] }