CVE-2020-15659

Advisory lineage Upstream: 0 Downstream: 32
Modified
Published: 10 Aug 2020, 17:43
Last modified:04 Aug 2024, 13:22

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.3 HIGH
v2.0 (nvd)
EPSS Score
0.82% LOW
1% probability -0.11%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Aug 2020, 17:43
Published
Vulnerability first disclosed
04 Aug 2024, 13:22
Last Modified
Vulnerability information updated

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox ESR 78.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.82%• Percentile: 75%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    16.04 | 18.04 | 20.04

  • mozilla•firefox

    < 79.0 | ≥ unspecified, < 79

  • mozilla•firefox_esr

    < 68.11 | ≥ 78.0, < 78.1.0 | ≥ unspecified, < 68.11 | ≥ unspecified, < 78.1

  • mozilla•thunderbird

    < 68.11 | ≥ 78.0.1, < 78.1.0 | ≥ unspecified, < 68.11 | ≥ unspecified, < 78.1

  • opensuse•leap

    15.1 | 15.2

References (10)