CVE-2020-10768
Last modified
CVE-2020-10768 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.8.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10768Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10768Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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