CVE catalog
CVE-2021-46853
alpine: CVE-2021-46853
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.92% · Oct 25, 2026
Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | alpine | sid | 2.26+dfsg-6 | fixed |
| Debian | alpine | forky | 2.26+dfsg-6 | fixed |
| Debian | alpine | trixie | 2.26+dfsg-3 | fixed |
| Debian | alpine | bookworm | 2.26+dfsg-1 | fixed |
| Ubuntu | alpine | pro | 2.21+dfsg1-1.1build1 | vulnerable |
| Ubuntu | alpine | pro | 2.22+dfsg1-1 | vulnerable |
| Ubuntu | alpine | pro | 2.22+dfsg1-1ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | alpine | source | sid | 2.25+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | alpine | source | forky | 2.25+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | alpine | source | trixie | 2.25+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | alpine | source | bookworm | 2.25+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Ubuntu | alpine | deb | pro | 2.22+dfsg1-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2021-46853 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [alpine]Fixed
Details (2)
2.26+dfsg-1· amd64 · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
2.26+dfsg-1· arm64 · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
- [alpine-doc]Fixed
Source package: [alpine]
Details (2)
2.26+dfsg-1· all · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
2.26+dfsg-1· all · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
- [alpine-pico]Fixed
Source package: [alpine]
Details (2)
2.26+dfsg-1· amd64 · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
2.26+dfsg-1· arm64 · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
- [pilot]Fixed
Source package: [alpine]
Details (2)
2.26+dfsg-1· amd64 · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
2.26+dfsg-1· arm64 · bookwormFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · bookworm; dsa · alpine · debian · 12
[Debian 13 (Trixie)]
- [alpine]Fixed
Details (2)
2.26+dfsg-3· amd64 · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
2.26+dfsg-3· arm64 · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
- [alpine-doc]Fixed
Source package: [alpine]
Details (2)
2.26+dfsg-3· all · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
2.26+dfsg-3· all · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
- [alpine-pico]Fixed
Source package: [alpine]
Details (2)
2.26+dfsg-3· amd64 · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
2.26+dfsg-3· arm64 · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
- [pilot]Fixed
Source package: [alpine]
Details (2)
2.26+dfsg-3· amd64 · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
2.26+dfsg-3· arm64 · trixieFixed · Fixed:
2.25+dfsg1-1dsa · alpine · debian · 13
Observed: