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Oracle Linux: (CVE-2021-20219) ELSA-2021-9215: Unbreakable Enterprise kernel security update

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Oracle Linux: (CVE-2021-20219) ELSA-2021-9215: Unbreakable Enterprise kernel security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
03/23/2021
Created
05/08/2021
Added
05/06/2021
Modified
05/06/2021

Description

A denial of service vulnerability was found in n_tty_receive_char_special in drivers/tty/n_tty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop (due to a changing ldata->read_head, and a missing sanity check) and cause a threat to the system availability.

Solution(s)

  • 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-2021-9215
  • CVE-2021-20219

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