Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2023-0458: kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Red Hat: CVE-2023-0458: kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/26/2023
Created
08/02/2023
Added
08/02/2023
Modified
03/13/2024

Description

A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11

Solution(s)

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

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;