CVE-2021-28091

Publication date 1 June 2021

Last updated 18 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.

Status

Package Ubuntu Release Status
lasso 25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Fixed 2.6.1-2ubuntu0.1
20.10 groovy
Fixed 2.6.0-7ubuntu2.1
20.04 LTS focal
Fixed 2.6.0-7ubuntu1.2
18.04 LTS bionic
Fixed 2.5.1-0ubuntu1.2
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
lasso

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references