{"schemaVersion":3,"id":"CVE-2019-15239","aliases":["UBUNTU-CVE-2019-15239","DEBIAN-CVE-2019-15239"],"status":"published","duplicateOf":null,"title":null,"description":"In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability that was potentially more severe than the issue that was intended to be fixed by backporting. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. This can result in a kernel crash, or potentially in privilege escalation. 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