CVE-2021-3618Microsoft CVSS 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Microsoft security update for CVE-2021-3618 — CBL Mariner

Published
April 5, 2022
Last Modified
—

🔗 CVE IDs covered (1)

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-3618. This page also shows what EchelonGraph holds for CVE-2021-3618, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products4

  • CBL Mariner 1.0 ARM
  • CBL Mariner 1.0 x64
  • CBL Mariner 2.0 ARM
  • CBL Mariner 2.0 x64

✅ Updates Microsoft lists: 3 updates

3 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—CBL-Mariner1.20.1-3
—CBL-Mariner3.0.5-1
—CBL-Mariner1.20.2-2

🧭 EchelonGraph on CVE-2021-3618

EchelonGraph score
7.4 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.

Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2021-3618, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (2)