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CVE-2021-41990

Publication date 18 October 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur.

Read the notes from the security team

Status

Package Ubuntu Release Status
strongswan 24.04 LTS noble
Fixed 5.9.1-1ubuntu3.1
23.10 mantic
Fixed 5.9.1-1ubuntu3.1
23.04 lunar
Fixed 5.9.1-1ubuntu3.1
22.10 kinetic
Fixed 5.9.1-1ubuntu3.1
22.04 LTS jammy
Fixed 5.9.1-1ubuntu3.1
21.10 impish
Fixed 5.9.1-1ubuntu3.1
21.04 hirsute
Fixed 5.9.1-1ubuntu1.2
20.04 LTS focal
Fixed 5.8.2-1ubuntu3.3
18.04 LTS bionic
Fixed 5.6.2-1ubuntu2.7
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

mdeslaur

affects 5.6.1+

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-5111-1
    • strongSwan vulnerabilities
    • 19 October 2021

Other references