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Oracle Linux: (CVE-2020-35508) (Multiple Advisories): kernel security, bug fix, and enhancement update

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Oracle Linux: (CVE-2020-35508) (Multiple Advisories): kernel security, bug fix, and enhancement update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/25/2021
Created
05/08/2021
Added
05/06/2021
Modified
05/26/2021

Description

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.

Solution(s)

  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek
  • oracle-linux-upgrade-kernel-uek-debug
  • oracle-linux-upgrade-kernel-uek-debug-devel
  • oracle-linux-upgrade-kernel-uek-devel
  • oracle-linux-upgrade-kernel-uek-doc
  • oracle-linux-upgrade-kernel-uek-firmware

References

  • ELSA-2021-1578
  • CVE-2020-35508
  • USN-4751-1
  • USN-4752-1

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