CVE-2021-46853

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

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugs.gentoo.org/807613	Issue Tracking Third Party Advisory
https://nostarttls.secvuln.info/	Technical Description Third Party Advisory
https://security.gentoo.org/glsa/202301-07	Third Party Advisory
https://bugs.gentoo.org/807613	Issue Tracking Third Party Advisory
https://nostarttls.secvuln.info/	Technical Description Third Party Advisory
https://security.gentoo.org/glsa/202301-07	Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

05 May 2025, 14:15

Type	Values Removed	Values Added
CWE		CWE-367

21 Nov 2024, 06:34

Type	Values Removed	Values Added
References	~~() https://bugs.gentoo.org/807613 - Issue Tracking, Third Party Advisory~~	() https://bugs.gentoo.org/807613 - Issue Tracking, Third Party Advisory
References	~~() https://nostarttls.secvuln.info/ - Technical Description, Third Party Advisory~~	() https://nostarttls.secvuln.info/ - Technical Description, Third Party Advisory
References	~~() https://security.gentoo.org/glsa/202301-07 - Third Party Advisory~~	() https://security.gentoo.org/glsa/202301-07 - Third Party Advisory

01 Mar 2023, 14:08

Type	Values Removed	Values Added
References		(GENTOO) https://security.gentoo.org/glsa/202301-07 - Third Party Advisory

05 Nov 2022, 18:15

Type	Values Removed	Values Added
Summary	~~Alpine before 2.25 allows remote attackers to cause a denial of service (daemon crash) when LIST or LSUB is sent before STARTTLS.~~	Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.

04 Nov 2022, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-11-03 06:15

Updated : 2025-05-05 14:15

NVD link : CVE-2021-46853

Mitre link : CVE-2021-46853

CVE.ORG link : CVE-2021-46853

JSON object : View

Products Affected

alpine_project

alpine

CWE

NVD-CWE-noinfo CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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