Vulnerability CVE-2020-16119
Published: 2021-01-14

Description:
Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.

 References:
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695
https://launchpad.net/bugs/1883840
https://lore.kernel.org/netdev/20201013171849.236025-1-kleber.souza@canonical.com/T/
https://ubuntu.com/USN-4576-1
https://ubuntu.com/USN-4577-1
https://ubuntu.com/USN-4578-1
https://ubuntu.com/USN-4579-1
https://ubuntu.com/USN-4580-1
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