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ALPINE-CVE-2021-3618

ALPINE-CVE-2021-3618

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.4 · High · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • nginx Alpine:v3.14

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.15

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.16

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.17

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.18

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.19

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.20

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.21

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.22

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.23

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

  • nginx Alpine:v3.24

    Affected ranges
    • ECOSYSTEM: < 1.20.1-r1

    Update to 1.20.1-r1

Original sources

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