PT-2020-5328 · Linux+8 · Linux Kernel+8
Chennan
·
Published
2020-09-25
·
Updated
2023-05-16
·
CVE-2020-25643
CVSS v2.0
7.5
High
| Vector | AV:N/AC:M/Au:S/C:P/I:P/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.9-rc7
Description
A flaw in the HDLC PPP module of the Linux kernel causes memory corruption and a read overflow due to improper input validation in the
ppp cp parse cr function. This can lead to a system crash or denial of service, posing a threat to data confidentiality, integrity, and system availability. The vulnerability can be exploited by a remote attacker to cause a denial of service.Recommendations
For Linux kernel versions prior to 5.9-rc7, update to version 5.9-rc7 or later to resolve the issue. As a temporary workaround, consider restricting access to the HDLC PPP module to minimize the risk of exploitation.
Exploit
Fix
DoS
RCE
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Suse
Ubuntu