CVE-2021-46853

Publication date 3 November 2022

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

Description

Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.

Status

Package Ubuntu Release Status
alpine 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
20.04 LTS focal
Fixed 2.22+dfsg1-1ubuntu0.1~esm1
18.04 LTS bionic
Fixed 2.21+dfsg1-1ubuntu0.1~esm1
16.04 LTS xenial
Fixed 2.20+dfsg1-2ubuntu0.1~esm1
14.04 LTS trusty Ignored end of standard support

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Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.9 · Medium

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references

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