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OpenAdvisories
Medium USN-4580-1 1 CVE

linux, linux-lts-trusty vulnerability

Published Oct 14, 2020 · Updated Jun 3, 2026

Ecosystem: Ubuntu

Summary

Hadar Manor discovered that the DCCP protocol implementation in the Linux
kernel improperly handled socket reuse, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux 3.13.0-182.233

Vulnerabilities 1

  • Medium 6.3
    CVE-2020-16119

    DCCP CCID structure use-after-free

    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, …

    Canonical Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://ubuntu.com/security/CVE-2020-16119