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CVE-2020-12403

CVE-2020-12403

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

A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.

CVSS 9.1 · Critical · EPSS 1.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • nss

    Versions
    • nss 3.55: Affected

    No fix published

  • nss Debian:12

    Affected ranges
    • ECOSYSTEM: < 2:3.55-1

    Update to 2:3.55-1

  • nss Debian:13

    Affected ranges
    • ECOSYSTEM: < 2:3.55-1

    Update to 2:3.55-1

  • nss Debian:14

    Affected ranges
    • ECOSYSTEM: < 2:3.55-1

    Update to 2:3.55-1

  • nss Ubuntu:Pro:14.04:LTS

    Versions
    • 2:3.15.1-1ubuntu1
    • 2:3.15.2-1
    • 2:3.15.3-1
    • 2:3.15.3.1-1
    • 2:3.15.3.1-1.1
    • 2:3.15.3.1-1.1ubuntu1
    • 2:3.15.4-1ubuntu3
    • 2:3.15.4-1ubuntu4
    • 2:3.15.4-1ubuntu5
    • 2:3.15.4-1ubuntu6
    • 2:3.15.4-1ubuntu7
    • 2:3.15.4-1ubuntu7.1
    • 2:3.17-0ubuntu0.14.04.1
    • 2:3.17.1-0ubuntu0.14.04.1
    • 2:3.17.1-0ubuntu0.14.04.2
    • 2:3.17.4-0ubuntu0.14.04.1
    • 2:3.19.2-0ubuntu0.14.04.1
    • 2:3.19.2.1-0ubuntu0.14.04.1
    • 2:3.19.2.1-0ubuntu0.14.04.2
    • 2:3.21-0ubuntu0.14.04.1
    • 2:3.21-0ubuntu0.14.04.2
    • 2:3.23-0ubuntu0.14.04.1
    • 2:3.26.2-0ubuntu0.14.04.3
    • 2:3.28.4-0ubuntu0.14.04.1
    • 2:3.28.4-0ubuntu0.14.04.2
    • 2:3.28.4-0ubuntu0.14.04.3
    • 2:3.28.4-0ubuntu0.14.04.4
    • 2:3.28.4-0ubuntu0.14.04.5
    • 2:3.28.4-0ubuntu0.14.04.5+esm1
    • 2:3.28.4-0ubuntu0.14.04.5+esm2
    • 2:3.28.4-0ubuntu0.14.04.5+esm3
    • 2:3.28.4-0ubuntu0.14.04.5+esm4
    • 2:3.28.4-0ubuntu0.14.04.5+esm5
    • 2:3.28.4-0ubuntu0.14.04.5+esm6
    • 2:3.28.4-0ubuntu0.14.04.5+esm7
    Affected ranges
    • ECOSYSTEM: < 2:3.28.4-0ubuntu0.14.04.5+esm8

    Update to 2:3.28.4-0ubuntu0.14.04.5+esm8

  • nss Ubuntu:16.04:LTS

    Versions
    • 2:3.19.2-1ubuntu1
    • 2:3.19.2.1-0ubuntu1
    • 2:3.21-1ubuntu2
    • 2:3.21-1ubuntu3
    • 2:3.21-1ubuntu4
    • 2:3.23-0ubuntu0.16.04.1
    • 2:3.26.2-0ubuntu0.16.04.2
    • 2:3.28.4-0ubuntu0.16.04.1
    • 2:3.28.4-0ubuntu0.16.04.2
    • 2:3.28.4-0ubuntu0.16.04.3
    • 2:3.28.4-0ubuntu0.16.04.4
    • 2:3.28.4-0ubuntu0.16.04.5
    • 2:3.28.4-0ubuntu0.16.04.6
    • 2:3.28.4-0ubuntu0.16.04.8
    • 2:3.28.4-0ubuntu0.16.04.9
    • 2:3.28.4-0ubuntu0.16.04.10
    • 2:3.28.4-0ubuntu0.16.04.11
    • 2:3.28.4-0ubuntu0.16.04.12
    • 2:3.28.4-0ubuntu0.16.04.13
    Affected ranges
    • ECOSYSTEM: < 2:3.28.4-0ubuntu0.16.04.14

    Update to 2:3.28.4-0ubuntu0.16.04.14

  • nss Ubuntu:18.04:LTS

    Versions
    • 2:3.32-1ubuntu3
    • 2:3.34-1ubuntu1
    • 2:3.35-2ubuntu2
    • 2:3.35-2ubuntu2.1
    • 2:3.35-2ubuntu2.2
    • 2:3.35-2ubuntu2.3
    • 2:3.35-2ubuntu2.5
    • 2:3.35-2ubuntu2.6
    • 2:3.35-2ubuntu2.7
    • 2:3.35-2ubuntu2.8
    • 2:3.35-2ubuntu2.9
    • 2:3.35-2ubuntu2.11
    Affected ranges
    • ECOSYSTEM: < 2:3.35-2ubuntu2.12

    Update to 2:3.35-2ubuntu2.12

  • nss Ubuntu:20.04:LTS

    Versions
    • 2:3.45-1ubuntu2
    • 2:3.47-1ubuntu1
    • 2:3.47-1ubuntu2
    • 2:3.48-1ubuntu1
    • 2:3.49.1-1ubuntu1
    • 2:3.49.1-1ubuntu1.1
    • 2:3.49.1-1ubuntu1.2
    • 2:3.49.1-1ubuntu1.4
    Affected ranges
    • ECOSYSTEM: < 2:3.49.1-1ubuntu1.5

    Update to 2:3.49.1-1ubuntu1.5

Original sources

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