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Red Hat: CVE-2021-3600: CVE-2021-3600 kernel: eBPF 32-bit source register truncation on div/mod (Multiple Advisories)

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Red Hat: CVE-2021-3600: CVE-2021-3600 kernel: eBPF 32-bit source register truncation on div/mod (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
11/09/2021
Created
11/11/2021
Added
11/10/2021
Modified
01/28/2025

Description

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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