Alerts This Week
Warning Icon 1 640
Alerts This Week
Warning Icon 1 640

Ubuntu 16.04 & 18.04 USN-6488-2 critical: strongSwan denial of service

ubuntu
Calendar Grey December 14, 2023
Dist Ubuntu Esm H88
The December notification from Ubuntu emphasizes a vulnerability in strongSwan, which could lead crafted packets to either disrupt service or trigger code execution.
strongSwan could be made to crash or run programs if it received specially crafted network traffic.

Summary

strongSwan could be made to crash or run programs if it received

specially crafted network traffic.

Software Description:

- strongswan: IPsec VPN solution

Details:

USN-6488-1 fixed a vulnerability in strongSwan. This update provides

the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

 Florian Picca discovered that strongSwan incorrectly handled certain DH

 public values. A remote attacker could use this issue to cause strongSwan

 to crash, resulting in a denial of service, or possibly execute arbitrary

 code.

Topics%20covered

Topics Covered

security advisory denial of service update Ubuntu vulnerability strongSwan

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libstrongswan                   5.6.2-1ubuntu2.9+esm1
   strongswan                       5.6.2-1ubuntu2.9+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libstrongswan                   5.3.5-1ubuntu3.8+esm4
   strongswan                       5.3.5-1ubuntu3.8+esm4

In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6488-2

  https://ubuntu.com/security/notices/USN-6488-1

  CVE-2023-41913

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6488-2

Topics%20covered

Topics Covered

security advisory denial of service update Ubuntu vulnerability strongSwan

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here