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Vulnerability Sequoia

Local Privilege Escalation Vulnerability Sequoia Closed

ELinOS, Linux, Security

A new major issue in the Linux kernel (up to 5.13.3) has been reported on June 7th, 2021. The vulnerability (CVE-2021-33909) affects most of Linux operating systems (kernel version 3.16 – 5.1.13) including ELinOS 6.2 and 7.0. It causes an integer overflow through insufficient restricted seq buffer allocations in the Linux kernel’s filesystem layer allowing unprivileged users/attackers to gain root privileges. A proof-of-concept exploit was created. We’ve prepared the fixes for the Linux kernel versions available in ELinOS 7.0 and 6.2. The fix can be provided to customers on request.

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