Name: CVE-2021-46853: Time-of-check Time-of-use (TOCTOU) Race Condition
Published: 2022-11-03T00:00:00.000Z
Keywords: CVE, CVE-2021-46853, CWE-367, CVSS 5.9, EPSS 0.00841

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

CVSS Details

CVSS 3.1 Base Score: 5.9
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	View advisory ↗	debian-upgrade-alpine	Jul 30, 2024	Nov 3, 2022
Gentoo Linux	View advisory ↗	gentoo-linux-upgrade-mail-client-alpine	Jan 12, 2023	Nov 3, 2022
Ubuntu	View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗	ubuntu-pro-upgrade-alpineubuntu-pro-upgrade-alpine-picoubuntu-pro-upgrade-pilot	Mar 20, 2025	Nov 3, 2022

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