CVE-2020-27825
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-27825
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-27825.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.9.6-1 |
| debian | bullseye | fixed | 5.9.6-1 |
| debian | forky | fixed | 5.9.6-1 |
| debian | sid | fixed | 5.9.6-1 |
| debian | trixie | fixed | 5.9.6-1 |
References
Verify integrity in audit chain (admin only). AS-IS.