CVE-2020-25212MEDIUM
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.
References
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.3
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://twitter.com/grsecurity/status/1303370421958578179
https://usn.ubuntu.com/4525-1/
Details
Source: MITRE
Published: 2020-09-09
Updated: 2020-11-02
Type: CWE-367
Risk Information
CVSS v2.0
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
CVSS v3.0
Base Score: 7
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 147982 | Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4752-1) | Nessus | Ubuntu Local Security Checks | high |
| 147842 | RHEL 7 : kernel (RHSA-2021:0878) | Nessus | Red Hat Local Security Checks | high |
| 147690 | EulerOS : kernel (EulerOS-SA-2021-1642) | Nessus | Huawei Local Security Checks | high |
| 147512 | EulerOS : kernel (EulerOS-SA-2021-1604) | Nessus | Huawei Local Security Checks | high |
| 147345 | NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2021-0051) | Nessus | NewStart CGSL Local Security Checks | medium |
| 147338 | NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2021-0012) | Nessus | NewStart CGSL Local Security Checks | medium |
| 147209 | RHEL 7 : kernel (RHSA-2021:0760) | Nessus | Red Hat Local Security Checks | medium |
| 146532 | RHEL 7 : kernel (RHSA-2021:0526) | Nessus | Red Hat Local Security Checks | medium |
| 146282 | openSUSE Security Update : RT kernel (openSUSE-2021-242) | Nessus | SuSE Local Security Checks | high |
| 145201 | EulerOS 2.0 SP3 : kernel (EulerOS-SA-2021-1079) | Nessus | Huawei Local Security Checks | high |
| 144831 | EulerOS Virtualization 3.0.2.6 : kernel (EulerOS-SA-2021-1056) | Nessus | Huawei Local Security Checks | critical |
| 144731 | EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039) | Nessus | Huawei Local Security Checks | high |
| 144549 | CentOS 7 : kernel (CESA-2020:5437) | Nessus | CentOS Local Security Checks | high |
| 144404 | RHEL 7 : kernel (RHSA-2020:5437) | Nessus | Red Hat Local Security Checks | high |
| 144402 | RHEL 7 : kernel-rt (RHSA-2020:5441) | Nessus | Red Hat Local Security Checks | high |
| 144333 | Oracle Linux 7 : kernel (ELSA-2020-5437) | Nessus | Oracle Linux Local Security Checks | high |
| 144295 | Scientific Linux Security Update : kernel on SL7.x x86_64 (2020:5437) | Nessus | Scientific Linux Local Security Checks | high |
| 143875 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3532-1) | Nessus | SuSE Local Security Checks | high |
| 143857 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3544-1) | Nessus | SuSE Local Security Checks | high |
| 143844 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3225-1) | Nessus | SuSE Local Security Checks | high |
| 143801 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2905-1) | Nessus | SuSE Local Security Checks | high |
| 143784 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3014-1) | Nessus | SuSE Local Security Checks | high |
| 143773 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3281-1) | Nessus | SuSE Local Security Checks | medium |
| 143772 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3219-1) | Nessus | SuSE Local Security Checks | medium |
| 143708 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2904-1) | Nessus | SuSE Local Security Checks | high |
| 143699 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2907-1) | Nessus | SuSE Local Security Checks | high |
| 143694 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3230-1) | Nessus | SuSE Local Security Checks | high |
| 143673 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2981-1) | Nessus | SuSE Local Security Checks | medium |
| 143654 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3501-1) | Nessus | SuSE Local Security Checks | high |
| 143639 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3503-1) | Nessus | SuSE Local Security Checks | high |
| 143398 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-2112) | Nessus | SuSE Local Security Checks | high |
| 142240 | EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-2353) | Nessus | Huawei Local Security Checks | high |
| 142176 | Debian DLA-2420-2 : linux regression update | Nessus | Debian Local Security Checks | high |
| 142112 | EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-2303) | Nessus | Huawei Local Security Checks | high |
| 141961 | Amazon Linux AMI : kernel (ALAS-2020-1437) | Nessus | Amazon Linux Local Security Checks | high |
| 141789 | Slackware 14.2 : Slackware 14.2 kernel (SSA:2020-295-01) | Nessus | Slackware Local Security Checks | high |
| 141559 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1698) | Nessus | SuSE Local Security Checks | high |
| 141546 | RHEL 7 : kernel-alt (RHSA-2020:4279) | Nessus | Red Hat Local Security Checks | medium |
| 141514 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1682) | Nessus | SuSE Local Security Checks | medium |
| 141448 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4578-1) | Nessus | Ubuntu Local Security Checks | medium |
| 141445 | Photon OS 2.0: Linux PHSA-2020-2.0-0288 | Nessus | PhotonOS Local Security Checks | high |
| 141396 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5885) | Nessus | Oracle Linux Local Security Checks | high |
| 141395 | Oracle Linux 8 : Unbreakable Enterprise kernel (ELSA-2020-5884) | Nessus | Oracle Linux Local Security Checks | high |
| 141388 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1655) | Nessus | SuSE Local Security Checks | high |
| 141374 | OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044) | Nessus | OracleVM Local Security Checks | critical |
| 141332 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2166) | Nessus | Huawei Local Security Checks | high |
| 141329 | EulerOS : kernel (EulerOS-SA-2020-2176) | Nessus | Huawei Local Security Checks | high |
| 141207 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5866) | Nessus | Oracle Linux Local Security Checks | critical |
| 141106 | Amazon Linux 2 : kernel (ALAS-2020-1495) | Nessus | Amazon Linux Local Security Checks | high |
| 140999 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2151) | Nessus | Huawei Local Security Checks | high |
| 140959 | EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-2011) | Nessus | Huawei Local Security Checks | medium |
| 140933 | Debian DLA-2385-1 : linux-4.19 security update | Nessus | Debian Local Security Checks | high |
| 140724 | Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4527-1) | Nessus | Ubuntu Local Security Checks | medium |
| 140723 | Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-4525-1) | Nessus | Ubuntu Local Security Checks | medium |
| 140708 | Photon OS 3.0: Linux PHSA-2020-3.0-0142 | Nessus | PhotonOS Local Security Checks | medium |