CVEvulnerability

CVE-2020-25643

7.2 HIGH Published 2020-10-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-10-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:M/Au:S/C:P/I:P/A:C
Weaknesses
CWE-20

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.

Affected configurations

• linux linux kernel (>= 2.6.29 < 4.4.238) • linux linux kernel (>= 4.5 < 4.9.238) • linux linux kernel (>= 4.10 < 4.14.200) • linux linux kernel (>= 4.15 < 4.19.148) • linux linux kernel (>= 4.20 < 5.4.68) • linux linux kernel (>= 5.5 < 5.8.12) • linux linux kernel 5.9.0 • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • opensuse leap 15.1 • debian debian linux 9.0 • debian debian linux 10.0 • opensuse leap 15.2 • netapp h410c firmware • starwindsoftware starwind virtual san v8

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References