CVE-2020-16119 – Use-after-free vulnerability in the Linux kernel exploitable by a local a

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.

Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16119

Reference (s):

• https://security.netapp.com/advisory/ntap-20210304-0006/
• https://lore.kernel.org/netdev/[email protected]/T/
• URL: https://lore.kernel.org/netdev/[email protected]/T/
• DEBIAN:DSA-4978
• URL: https://www.debian.org/security/2021/dsa-4978