CVE-2020-10766
unknown
CVSS v3
—
CVSS v2
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VIR risk
—
Description
A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-10766
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-10766.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.7.6-1 |
| debian | bullseye | fixed | 5.7.6-1 |
| debian | forky | fixed | 5.7.6-1 |
| debian | sid | fixed | 5.7.6-1 |
| debian | trixie | fixed | 5.7.6-1 |
References
Verify integrity in audit chain (admin only). AS-IS.