CVE-2020-14929
published 2020-06-19CVE-2020-14929: Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
1.82%
76.1th percentile
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| alpine_project | alpine | < 2.23 | 2.23 |
| alpine_project | alpine | >= 0 < 2.23+dfsg1-1 | 2.23+dfsg1-1 |
| alpine_project | alpine | >= 0 < 2.23+dfsg1-1 | 2.23+dfsg1-1 |
| alpine_project | alpine | >= 0 < 2.23+dfsg1-1 | 2.23+dfsg1-1 |
| alpine_project | alpine | >= 0 < 2.23+dfsg1-1 | 2.23+dfsg1-1 |
| alpine_project | alpine | >= 0 < 2.20+dfsg1-2ubuntu0.1~esm1 | 2.20+dfsg1-2ubuntu0.1~esm1 |
| alpine_project | alpine | >= 0 < 2.21+dfsg1-1ubuntu0.1~esm1 | 2.21+dfsg1-1ubuntu0.1~esm1 |
| alpine_project | alpine | >= 0 < 2.22+dfsg1-1ubuntu0.1~esm1 | 2.22+dfsg1-1ubuntu0.1~esm1 |
| debian | alpine | < alpine 2.23+dfsg1-1 (bookworm) | alpine 2.23+dfsg1-1 (bookworm) |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv7.5HIGH
vendor_debian7.5HIGH
vendor_ubuntu7.5HIGH
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Ubuntu
Alpine vulnerabilities
vendor_ubuntu·2025-03-20·CVSS 7.5
CVE-2021-46853 [HIGH] Alpine vulnerabilities
Title: Alpine vulnerabilities
Summary: Several security issues were fixed in Alpine.
It was discovered that Alpine did not use a secure connection under
certain circumstances. A remote attacker could possibly use this issue to
leak sensitive information. (CVE-2020-14929)
It was discovered that Alpine could allow untagged responses from an
IMAP server before upgrading to a TLS connection. A remote attacker could
possibly use this issue to leak sensitive information. (CVE-2021-38370)
It was discovered that Alpine could crash when receiving certain SMTP
commands. A remote attacker could possibly use this issue to cause a denial
of service. (CVE-2021-46853)
Instructions: In general, a standard system update will make all the necessary changes.
Debian
CVE-2020-14929: alpine - Alpine before 2.23 silently proceeds to use an insecure connection after a /tls ...
vendor_debian·2020·CVSS 7.5
CVE-2020-14929 [HIGH] CVE-2020-14929: alpine - Alpine before 2.23 silently proceeds to use an insecure connection after a /tls ...
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
Scope: local
bookworm: resolved (fixed in 2.23+dfsg1-1)
bullseye: resolved (fixed in 2.23+dfsg1-1)
forky: resolved (fixed in 2.23+dfsg1-1)
sid: resolved (fixed in 2.23+dfsg1-1)
trixie: resolved (fixed in 2.23+dfsg1-1)
OSV
alpine vulnerabilities
osv·2025-03-20·CVSS 7.5
CVE-2020-14929 [HIGH] alpine vulnerabilities
alpine vulnerabilities
It was discovered that Alpine did not use a secure connection under
certain circumstances. A remote attacker could possibly use this issue to
leak sensitive information. (CVE-2020-14929)
It was discovered that Alpine could allow untagged responses from an
IMAP server before upgrading to a TLS connection. A remote attacker could
possibly use this issue to leak sensitive information. (CVE-2021-38370)
It was discovered that Alpine could crash when receiving certain SMTP
commands. A remote attacker could possibly use this issue to cause a denial
of service. (CVE-2021-46853)
GHSA
GHSA-2h9h-wfvh-5r96: Alpine before 2
ghsa_unreviewed·2022-05-24
CVE-2020-14929 [MEDIUM] CWE-200 GHSA-2h9h-wfvh-5r96: Alpine before 2
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
OSV
CVE-2020-14929: Alpine before 2
osv·2020-06-19·CVSS 7.5
CVE-2020-14929 [HIGH] CVE-2020-14929: Alpine before 2
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-14929 alpine: silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH [fedora-all]
bugzilla·2020-06-23·CVSS 7.5
CVE-2020-14929 [HIGH] CVE-2020-14929 alpine: silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH [fedora-all]
CVE-2020-14929 alpine: silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg
Bugzilla
CVE-2020-14929 alpine: silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH
bugzilla·2020-06-23·CVSS 7.5
CVE-2020-14929 [HIGH] CVE-2020-14929 alpine: silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH
CVE-2020-14929 alpine: silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
Reference:
http://mailman13.u.washington.edu/pipermail/alpine-info/2020-June/008989.html
Discussion:
Created alpine tracking bugs for this issue:
Affects: fedora-all [bug 1850048]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those indiv
http://mailman13.u.washington.edu/pipermail/alpine-info/2020-June/008989.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00025.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFXQGKZZMP3VSTLZVO5Z7Z6USYIW37A6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZJLY6JDVGDNAJZ3UQDWYWSDBWOAOXMNX/http://mailman13.u.washington.edu/pipermail/alpine-info/2020-June/008989.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00025.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFXQGKZZMP3VSTLZVO5Z7Z6USYIW37A6/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZJLY6JDVGDNAJZ3UQDWYWSDBWOAOXMNX/
2020-06-19
Published