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FreeBSD: VID-77B877AA-EC18-11EA-88F8-901B0EF719AB (CVE-2020-7463): FreeBSD -- SCTP socket use-after-free bug

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FreeBSD: VID-77B877AA-EC18-11EA-88F8-901B0EF719AB (CVE-2020-7463): FreeBSD -- SCTP socket use-after-free bug

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
09/02/2020
Created
09/05/2020
Added
09/03/2020
Modified
04/05/2021

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From VID-77B877AA-EC18-11EA-88F8-901B0EF719AB:

Problem Description:

Due to improper handling in the kernel, a use-after-free bug can be triggered

by sending large user messages from multiple threads on the same socket.

Impact:

Triggering the use-after-free situation may result in unintended kernel

behaviour including a kernel panic.

Solution(s)

  • freebsd-upgrade-base-11_3-release-p13
  • freebsd-upgrade-base-11_4-release-p3
  • freebsd-upgrade-base-12_1-release-p9

References

  • CVE-2020-7463

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