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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25643
Reference (s):
- https://security.netapp.com/advisory/ntap-20201103-0002/
- DEBIAN:DSA-4774
- URL: https://www.debian.org/security/2020/dsa-4774
- https://bugzilla.redhat.com/show_bug.cgi?id=1879981
- URL: https://bugzilla.redhat.com/show_bug.cgi?id=1879981