CVE-2020-10768CWE-440

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been…

Medium · published September 15, 2020

CVSS v3.1
5.5
EPSS
0%
Percentile
33.1
In the wild
Unconfirmed
What it is

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00400 · 33.1th percentile
Weakness
CWE-440 · Expected Behavior Violation
Published
2020-09-15T23:13Z
EPSS history
Timeline
  • 15 SEP 23:13Z
    A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been…
    cvelistv5