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Oracle Linux: CVE-2024-22365: ELSA-2024-3163: pam security update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2024-22365: ELSA-2024-3163: pam security update (MODERATE) (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
01/18/2024
Created
05/22/2024
Added
05/07/2024
Modified
07/22/2024

Description

linux-pam (aka Linux PAM) before 1.6.0 allows attackers to cause a denial of service (blocked login process) via mkfifo because the openat call (for protect_dir) lacks O_DIRECTORY. A vulnerability was found in Linux PAM. An unprivileged user that is not yet in a corresponding mount namespace with ~/tmp mounted as a polyinstantiated dir can place a FIFO there, and a subsequent attempt to login as this user with `pam_namespace` configured will cause the `openat()` in `protect_dir()` to block the attempt, causing a local denial of service.

Solution(s)

  • oracle-linux-upgrade-pam
  • oracle-linux-upgrade-pam-devel
  • oracle-linux-upgrade-pam-docs

References

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