CVE-2020-12419

Advisory lineage Upstream: 0 Downstream: 29
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
0.4% LOW
0% probability -0.04%
KEV
Not listed
Ransomware
No reports
Public exploits
None 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

When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. 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: 0.40%• Percentile: 61%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • canonical•ubuntu_linux

    16.04 | 18.04 | 19.10 | 20.04

  • mozilla•firefox

    < 78.0 | ≥ unspecified, < 78

  • mozilla•firefox_esr

    < 68.10 | ≥ unspecified, < 68.10

  • mozilla•thunderbird

    < 68.10.0 | ≥ unspecified, < 68.10.0

  • opensuse•leap

    15.1 | 15.2

References (11)