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CVE-2021-41990

Published: 18 October 2021

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.

Notes

AuthorNote
mdeslaur
affects 5.6.1+

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
strongswan
Launchpad, Ubuntu, Debian
bionic
Released (5.6.2-1ubuntu2.7)
focal
Released (5.8.2-1ubuntu3.3)
hirsute
Released (5.9.1-1ubuntu1.2)
impish
Released (5.9.1-1ubuntu3.1)
jammy
Released (5.9.1-1ubuntu3.1)
kinetic
Released (5.9.1-1ubuntu3.1)
lunar
Released (5.9.1-1ubuntu3.1)
mantic
Released (5.9.1-1ubuntu3.1)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)

Severity score breakdown

Parameter Value
Base score 7.5
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