CVE-2020-25643high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1879981
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
https://www.debian.org/security/2020/dsa-4774
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Details
Source: MITRE
Published: 2020-10-06
Updated: 2021-10-19
Type: CWE-20
Risk Information
CVSS v2
Base Score: 7.5
Vector: AV:N/AC:M/Au:S/C:P/I:P/A:C
Impact Score: 8.5
Exploitability Score: 6.8
Severity: HIGH
CVSS v3
Base Score: 7.2
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.2
Severity: HIGH
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.8.13 (inclusive)
cpe:2.3:o:linux:linux_kernel:5.9.0:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:*
Configuration 2
OR
Configuration 3
OR
Configuration 4
OR
Configuration 5
OR
Configuration 6
AND
OR
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 150536 | SUSE SLES11 Security Update : kernel (SUSE-SU-2021:14630-1) | Nessus | SuSE Local Security Checks | high |
| 149914 | Oracle Linux 8 : kernel (ELSA-2021-1578) | Nessus | Oracle Linux Local Security Checks | high |
| 149874 | CentOS 8 : kernel (CESA-2021:1578) | Nessus | CentOS Local Security Checks | high |
| 149670 | RHEL 8 : kernel (RHSA-2021:1578) | Nessus | Red Hat Local Security Checks | high |
| 149660 | RHEL 8 : kernel-rt (RHSA-2021:1739) | Nessus | Red Hat Local Security Checks | high |
| 147982 | Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4752-1) | Nessus | Ubuntu Local Security Checks | high |
| 147690 | EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1642) | Nessus | Huawei Local Security Checks | high |
| 147559 | EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-1454) | Nessus | Huawei Local Security Checks | high |
| 147512 | EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1604) | Nessus | Huawei Local Security Checks | high |
| 147394 | NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2021-0030) | Nessus | NewStart CGSL Local Security Checks | high |
| 146282 | openSUSE Security Update : RT kernel (openSUSE-2021-242) | Nessus | SuSE Local Security Checks | high |
| 146181 | EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1200) | Nessus | Huawei 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 |
| 143845 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2980-1) | 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 |
| 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 |
| 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 |
| 143445 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4660-1) | Nessus | Ubuntu Local Security Checks | high |
| 143433 | Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4657-1) | Nessus | Ubuntu Local Security Checks | high |
| 143431 | Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4658-1) | Nessus | Ubuntu Local Security Checks | high |
| 143398 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-2112) | Nessus | SuSE Local Security Checks | high |
| 142943 | OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0051) | Nessus | OracleVM Local Security Checks | high |
| 142483 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5912) | Nessus | Oracle Linux Local Security Checks | high |
| 142331 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2411) | Nessus | Huawei Local Security Checks | high |
| 142260 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2429) | Nessus | Huawei 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 |
| 142148 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2311) | Nessus | Huawei Local Security Checks | high |
| 142052 | Debian DLA-2417-1 : linux-4.19 security update | Nessus | Debian Local Security Checks | high |
| 141973 | Amazon Linux 2 : kernel (ALAS-2020-1520) | Nessus | Amazon Linux 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 |
| 141552 | Debian DSA-4774-1 : linux - security update | Nessus | Debian Local Security Checks | high |
| 141388 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1655) | Nessus | SuSE Local Security Checks | high |