When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it again.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "curl-udeb": "7.35.0-1ubuntu2.20+esm7", "libcurl3": "7.35.0-1ubuntu2.20+esm7", "libcurl4-gnutls-dev": "7.35.0-1ubuntu2.20+esm7", "libcurl3-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl3-nss": "7.35.0-1ubuntu2.20+esm7", "libcurl4-doc": "7.35.0-1ubuntu2.20+esm7", "libcurl3-udeb-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl3-gnutls-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl4-openssl-dev": "7.35.0-1ubuntu2.20+esm7", "libcurl4-openssl-dev-dbgsym": "7.35.0-1ubuntu2.20+esm7", "curl-dbgsym": "7.35.0-1ubuntu2.20+esm7", "curl": "7.35.0-1ubuntu2.20+esm7", "libcurl3-udeb": "7.35.0-1ubuntu2.20+esm7", "curl-udeb-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl4-nss-dev-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl3-gnutls": "7.35.0-1ubuntu2.20+esm7", "libcurl4-gnutls-dev-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl3-nss-dbgsym": "7.35.0-1ubuntu2.20+esm7", "libcurl3-dbg": "7.35.0-1ubuntu2.20+esm7", "libcurl4-nss-dev": "7.35.0-1ubuntu2.20+esm7" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "curl-dbgsym": "7.58.0-2ubuntu3.14", "curl": "7.58.0-2ubuntu3.14", "libcurl4": "7.58.0-2ubuntu3.14", "libcurl4-gnutls-dev": "7.58.0-2ubuntu3.14", "libcurl4-dbgsym": "7.58.0-2ubuntu3.14", "libcurl3-nss": "7.58.0-2ubuntu3.14", "libcurl4-doc": "7.58.0-2ubuntu3.14", "libcurl3-nss-dbgsym": "7.58.0-2ubuntu3.14", "libcurl3-gnutls": "7.58.0-2ubuntu3.14", "libcurl3-gnutls-dbgsym": "7.58.0-2ubuntu3.14", "libcurl4-openssl-dev": "7.58.0-2ubuntu3.14", "libcurl4-nss-dev": "7.58.0-2ubuntu3.14" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "curl-dbgsym": "7.68.0-1ubuntu2.6", "curl": "7.68.0-1ubuntu2.6", "libcurl4": "7.68.0-1ubuntu2.6", "libcurl4-gnutls-dev": "7.68.0-1ubuntu2.6", "libcurl4-dbgsym": "7.68.0-1ubuntu2.6", "libcurl3-nss": "7.68.0-1ubuntu2.6", "libcurl4-doc": "7.68.0-1ubuntu2.6", "libcurl3-nss-dbgsym": "7.68.0-1ubuntu2.6", "libcurl3-gnutls": "7.68.0-1ubuntu2.6", "libcurl3-gnutls-dbgsym": "7.68.0-1ubuntu2.6", "libcurl4-openssl-dev": "7.68.0-1ubuntu2.6", "libcurl4-nss-dev": "7.68.0-1ubuntu2.6" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "curl-dbgsym": "7.74.0-1.3ubuntu2", "curl": "7.74.0-1.3ubuntu2", "libcurl4": "7.74.0-1.3ubuntu2", "libcurl4-gnutls-dev": "7.74.0-1.3ubuntu2", "libcurl4-dbgsym": "7.74.0-1.3ubuntu2", "libcurl3-nss": "7.74.0-1.3ubuntu2", "libcurl4-doc": "7.74.0-1.3ubuntu2", "libcurl3-nss-dbgsym": "7.74.0-1.3ubuntu2", "libcurl3-gnutls": "7.74.0-1.3ubuntu2", "libcurl3-gnutls-dbgsym": "7.74.0-1.3ubuntu2", "libcurl4-openssl-dev": "7.74.0-1.3ubuntu2", "libcurl4-nss-dev": "7.74.0-1.3ubuntu2" } ] }