CVEvulnerability
CVE-2020-25656
4.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-12-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.1 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 1.9 LOW — AV:L/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-416
Description
A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
Affected configurations
• linux linux kernel (< 5.10)
• linux linux kernel 5.10
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• debian debian linux 9.0
• starwindsoftware starwind virtual san v8
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1888726 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List, Third Party Advisory
- https://lkml.org/lkml/2020/10/16/84 Exploit, Mailing List, Third Party Advisory
- https://lkml.org/lkml/2020/10/29/528 Mailing List, Patch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0006/ Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1888726 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List, Third Party Advisory
- https://lkml.org/lkml/2020/10/16/84 Exploit, Mailing List, Third Party Advisory
- https://lkml.org/lkml/2020/10/29/528 Mailing List, Patch, Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0006/ Third Party Advisory