Headline
CVE-2021-3493: security - [CVE-2021-3493] Ubuntu Linux kernel overlayfs fs caps privilege escalation
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow unprivileged overlay mounts, an attacker could use this to gain elevated privileges.
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By Deeba Ahmed The stealthy malware leverages security flaws to gain privilege escalation and establish persistence. This is a post from HackRead.com Read the original post: Stealthy Linux Malware Shikitega Deploying Monero Cryptominer
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