Use of a Broken or Risky Cryptographic Algorithm Affecting nss package, versions <2:3.26.2-1.1+deb9u2


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.05% (18th percentile)

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  • Snyk ID SNYK-DEBIAN9-NSS-597143
  • published 1 Aug 2020
  • disclosed 8 Oct 2020

How to fix?

Upgrade Debian:9 nss to version 2:3.26.2-1.1+deb9u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resulting in variable-time execution dependent on secret data. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

CVSS Scores

version 3.1
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NVD

4.7 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    None
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SUSE

4.7 medium
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Red Hat

4.4 medium