CVE-2020-6559

Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 21 Sept 2020, 19:06
Last modified:04 Aug 2024, 09:11

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.3 HIGH
v2.0 (nvd)
EPSS Score
5.65% LOW
6% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Sept 2020, 19:06
Published
Vulnerability first disclosed
04 Aug 2024, 09:11
Last Modified
Vulnerability information updated

Description

Use after free in presentation API in Google Chrome prior to 85.0.4183.83 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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: 5.65%• Percentile: 91%

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

  • CWE-787•Out-of-bounds Write

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

Affected Systems

  • debian•debian_linux

    10.0

  • fedoraproject•fedora

    33

  • google•chrome

    < 85.0.4183.83 | ≥ unspecified, < 85.0.4183.83

  • opensuse•backports_sle

    15.0:sp1 | 15.0:sp2

  • opensuse•leap

    15.1 | 15.2

References (8)