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CVE-2021-26708

Status Candidate

Overview

A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

Related Files

Ubuntu Security Notice USN-4727-1
Posted Feb 10, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4727-1 - Alexander Popov discovered that multiple race conditions existed in the AF_VSOCK implementation in the Linux kernel. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-26708
MD5 | a8c89d3cda17bd2462a03e3fd24d9971
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