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Vulnerabilities
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CVE-2020-25643

Updated on 06 Oct 2020

Severity

7.2 High severity

Details

CVSS score
7.2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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.

Details

Affected product:
AlmaLinux 8 , Amazon Linux 1 , Amazon Linux 2 , CentOS 6 , CentOS 6 ALT , CentOS 6 ELS , CentOS 6 plus , CentOS 7 , CentOS 7 ALT , CentOS 7 plus , CentOS 8 , CentOS 8.4 ELS , CentOS 8.5 ELS , CloudLinux 6 ELS , CloudLinux OS 6 , CloudLinux OS 6h , CloudLinux OS 7 , CloudLinux OS 7h , CloudLinux OS 8 , Debian 10 , Debian 10 cloud , Debian 9 , Endurance 6 elrepo , Endurance 7 eig 3.10 , Endurance 7 eig 4.14 , OEL 7 Dell , OEL 8 Dell , OpenVZ 6 , Oracle Linux 6 , Oracle Linux 6 ELS , Oracle Linux 7 , Oracle Linux 8 , Proofpoint , Proxmox VE 5 , Proxmox VE 6 , RHEL 6 , RHEL 7 , RHEL 8 , Rocky Linux 8 , Scientific 6 , Ubuntu 14.04 , Ubuntu 14.04 ESM , Ubuntu 16.04 , Ubuntu 16.04 ESM , Ubuntu 18.04 , Ubuntu 20.04 , Upstream 4.14 , Upstream 4.19 , Upstream 4.4 , Upstream 4.9
Affected packages:
linux @ - (+79 more)
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.

Fixes