Executive Summary

Informations
Name CVE-2020-25643 First vendor Publication 2020-10-06
Vendor Cve Last vendor Modification 2020-11-03

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.2
Base Score 7.2 Environmental Score 7.2
impact SubScore 5.9 Temporal Score 7.2
Exploitabality Sub Score 1.2
 
Attack Vector Network Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:P/I:P/A:C)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 8.5 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25643

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3351
Os 1
Os 2

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20201103-0002/
DEBIAN https://www.debian.org/security/2020/dsa-4774
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1879981
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
MLIST https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html

Alert History

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Date Informations
2020-11-03 17:22:49
  • Multiple Updates
2020-11-03 05:22:55
  • Multiple Updates
2020-10-28 21:23:33
  • Multiple Updates
2020-10-20 09:22:57
  • Multiple Updates
2020-10-16 21:23:09
  • Multiple Updates
2020-10-12 05:22:52
  • Multiple Updates
2020-10-07 05:22:56
  • Multiple Updates
2020-10-06 21:23:07
  • First insertion