CVE-2020-12417

Advisory lineage Upstream: 0 Downstream: 26
Modified
Published: 09 Jul 2020, 14:39
Last modified:04 Aug 2024, 11:56

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.3 HIGH
v2.0 (nvd)
EPSS Score
0.54% LOW
1% probability +0.11%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

09 Jul 2020, 14:39
Published
Vulnerability first disclosed
04 Aug 2024, 11:56
Last Modified
Vulnerability information updated

Description

Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

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: 0.54%• Percentile: 68%

Techniques & Countermeasures

  • CWE-617•Reachable Assertion

    The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

  • CWE-681•Incorrect Conversion between Numeric Types

    When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.

  • 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 | 19.10 | 20.04

  • Unknown•Firefox

    < 78.0 | ≥ unspecified, < 78

  • mozilla•firefox_esr

    < 68.10.0 | ≥ unspecified, < 68.10

  • mozilla•thunderbird

    < 68.10.0 | ≥ unspecified, < 68.10.0

  • opensuse•leap

    15.1 | 15.2

References (11)