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Red Hat: CVE-2023-0386: FUSE filesystem low-privileged user privileges escalation (Multiple Advisories)

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Red Hat: CVE-2023-0386: FUSE filesystem low-privileged user privileges escalation (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
03/22/2023
Created
05/05/2023
Added
04/06/2023
Modified
01/28/2025

Description

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

Solution(s)

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

References

  • CVE-2023-0386
  • RHSA-2023:1554
  • RHSA-2023:1566
  • RHSA-2023:1584
  • RHSA-2023:1659
  • RHSA-2023:1660
  • RHSA-2023:1681
  • RHSA-2023:1691
  • RHSA-2023:1703
  • RHSA-2023:1970
  • RHSA-2023:1980
  • RHSA-2023:1984
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