CVE-2021-46853 - Vulnerability Details - OpenCVE

Description

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

Published: 2022-11-03

Score: 5.9 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:alpine_project:alpine:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-33507	Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.
Ubuntu USN	USN-7360-1	Alpine vulnerabilities

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00841.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://bugs.gentoo.org/807613
https://nostarttls.secvuln.info/
https://security.gentoo.org/glsa/202301-07

History

Mon, 05 May 2025 14:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-367
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Alpine Project Alpine

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-11-03T00:00:00.000Z

Updated: 2025-05-05T13:38:19.086Z

Reserved: 2022-11-03T00:00:00.000Z

Link: CVE-2021-46853

Vulnrichment

Updated: 2024-08-04T05:17:42.270Z

NVD

Status : Modified

Published: 2022-11-03T06:15:09.760

Modified: 2026-06-17T04:15:40.500

Link: CVE-2021-46853

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
NVD-CWE-noinfo

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