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Oracle Linux: CVE-2023-38712: ELSA-2023-6549: libreswan security update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2023-38712: ELSA-2023-6549:libreswan security update (MODERATE) (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
08/08/2023
Created
11/24/2023
Added
11/22/2023
Modified
01/07/2025

Description

An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the pluto daemon to crash and restart. A NULL pointer dereference vulnerability was found in the Libreswan package. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state occurs. This flaw allows a malicious client or attacker to send a malformed IKEv1 Delete/Notify packet, causing a crash and restarting the libreswan pluto daemon. When sent continuously, this could lead to a denial of service attack.

Solution(s)

  • oracle-linux-upgrade-libreswan

References

  • https://attackerkb.com/topics/cve-2023-38712
  • CVE - 2023-38712
  • ELSA-2023-6549
  • ELSA-2023-7052
  • 查看数 700
  • 已创建
  • 最后回复

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