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Linux kernel RDS flaw affects Red Hat, Ubuntu, Debian and SUSE

Submitted by Rianne Schestowitz on Monday 20th of May 2019 09:50:31 AM Filed under
Linux

If you're not in the habit of keeping up to date with the latest version of the Linux kernel, now might be a good time to think about doing so. Systems based on versions of the kernel older than 5.0.8 suffer from a severe flaw in the implementation of RDS over TCP.

Left unpatched, the flaw could enable an attacker to compromise a system. The National Vulnerability Database entry says: "There is a race condition leading to a use-after-free, related to net namespace cleanup".

Red Hat, Ubuntu, Debian and SUSE are all affected by the flaw, and security advisories have been issued for each Linux distro. It is worth noting that the "attack complexity" is rated as being "high", so while the impact of the security hole could be serious, the changes of a successful attack are relatively slim.

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