USN-6488-2: strongSwan vulnerability

Published Dec 14, 2023
·
Updated

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.

Affected Software

8 affected componentsFixes available
All of the following
ubuntu/libstrongswan<5.6.2-1ubuntu2.9+esm1
5.6.2-1ubuntu2.9+esm1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/strongswan<5.6.2-1ubuntu2.9+esm1
5.6.2-1ubuntu2.9+esm1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/libstrongswan<5.3.5-1ubuntu3.8+esm4
5.3.5-1ubuntu3.8+esm4
Ubuntu Ubuntu=16.04
All of the following
ubuntu/strongswan<5.3.5-1ubuntu3.8+esm4
5.3.5-1ubuntu3.8+esm4
Ubuntu Ubuntu=16.04

Event History

Dec 14, 2023
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of USN-6488-2?

USN-6488-2 addresses a critical vulnerability that could allow a remote attacker to exploit incorrect handling of DH public values.

2

How do I fix USN-6488-2?

To fix USN-6488-2, upgrade the strongSwan and libstrongswan packages to the versions specified in the advisory.

3

Which Ubuntu versions are affected by USN-6488-2?

USN-6488-2 affects Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

4

Who discovered the vulnerability related to USN-6488-2?

The vulnerability addressed in USN-6488-2 was discovered by Florian Picca.

5

What is the impact of not addressing USN-6488-2?

Failure to address USN-6488-2 may leave your system vulnerable to remote attacks that exploit the identified weakness.

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