VULNERABILITY

VMware Photon OS: CVE-2022-4696

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VMware Photon OS: CVE-2022-4696

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
01/11/2023
Created
01/21/2025
Added
01/20/2025
Modified
02/04/2025

Description

There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above

Solution(s)

  • vmware-photon_os_update_tdnf

References

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