CVEvulnerability
CVE-2020-25212
7.0 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-09-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-367, CWE-787
Description
A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.
Affected configurations
• linux linux kernel (< 5.8.3)
• debian debian linux 9.0
• opensuse leap 15.1
• opensuse leap 15.2
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 20.04
Related
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3 Mailing List, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21 Mailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html Mailing List, Third Party Advisory
- https://twitter.com/grsecurity/status/1303370421958578179 Third Party Advisory
- https://usn.ubuntu.com/4525-1/ Third Party Advisory
- https://usn.ubuntu.com/4527-1/ Third Party Advisory
- https://usn.ubuntu.com/4578-1/ Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3 Mailing List, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4487b93545214a9db8cbf32e86411677b0cca21 Mailing List, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html Mailing List, Third Party Advisory
- https://twitter.com/grsecurity/status/1303370421958578179 Third Party Advisory
- https://usn.ubuntu.com/4525-1/ Third Party Advisory
- https://usn.ubuntu.com/4527-1/ Third Party Advisory
- https://usn.ubuntu.com/4578-1/ Third Party Advisory