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Ubuntu 5250-2 StrongSwan Denial Of Service Issue - Update Required

ubuntu
Calendar Grey January 24, 2022
Dist Ubuntu Esm H88
An important Debian notice DSA-5173-1 reveals a flaw in OpenSSL, outlining potential threats including data exposure.
strongSwan could crash or allow unintended access to network services.

Summary

strongSwan could crash or allow unintended access to network services.

Software Description:

- strongswan: IPsec VPN solution

Details:

USN-5250-1 fixed a vulnerability in strongSwan. This update provides

the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Zhuowei Zhang discovered that stringSwan incorrectly handled EAP

authentication. A remote attacker could use this issue to cause strongSwan

to crash, resulting in a denial of service, or possibly bypass client and

server authentication.

Topics%20covered

Topics Covered

security advisory DoS Ubuntu authentication network services strongSwan

Update Instructions

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

Ubuntu 16.04 ESM:
  libstrongswan                   5.3.5-1ubuntu3.8+esm2
  strongswan                      5.3.5-1ubuntu3.8+esm2

Ubuntu 14.04 ESM:
  libstrongswan                   5.1.2-0ubuntu2.11+esm2
  strongswan                      5.1.2-0ubuntu2.11+esm2

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

References

https://ubuntu.com/security/notices/USN-5250-2

https://ubuntu.com/security/notices/USN-5250-1

CVE-2021-45079

Severity
critical
Lowest
Low
Medium
High
Critical

January 24, 2022

Topics%20covered

Topics Covered

security advisory DoS Ubuntu authentication network services strongSwan

Package Information

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