CVE-2020-12399

Advisory lineage Upstream: 0 Downstream: 21
Modified
Published: 09 Jul 2020, 14:52
Last modified:04 Aug 2024, 11:56

Vulnerability Summary

Overall Risk (default)
low
18/100
CVSS Score
4.4 MEDIUM
v3.1 (nvd)
EPSS Score
0.09% LOW
0% probability -0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jul 2020, 14:52
Published
Vulnerability first disclosed
04 Aug 2024, 11:56
Last Modified
Vulnerability information updated

Description

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.4CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
  • v2.0•LOW•Score: 1.2AV:L/AC:H/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.09%• Percentile: 26%

Techniques & Countermeasures

  • CWE-203•Observable Discrepancy

    The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.

Affected Systems

  • debian•debian_linux

    9.0

  • mozilla•firefox

    < 77.0 | ≥ unspecified, < 77

  • mozilla•firefox_esr

    < 68.9.0 | ≥ unspecified, < 68.9

  • mozilla•thunderbird

    < 68.9.0 | ≥ unspecified, < 68.9.0

References (8)