CVE-2020-25643
Linux Kernel HDLC_PPP Denial of Service Memory Corruption Vulnerability
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.
INFO
Published Date :
Oct. 6, 2020, 2:15 p.m.
Last Modified :
May 16, 2023, 10:48 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
1.2
Public PoC/Exploit Available at Github
CVE-2020-25643 has a 2 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2020-25643
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-25643
.
URL | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html | Mailing List Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=1879981 | Issue Tracking Patch Third Party Advisory |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105 | Mailing List Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html | Mailing List Third Party Advisory |
https://security.netapp.com/advisory/ntap-20201103-0002/ | Third Party Advisory |
https://www.debian.org/security/2020/dsa-4774 | Third Party Advisory |
https://www.starwindsoftware.com/security/sw-20210325-0002/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-25643
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-25643
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
May. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.8.13 *cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:* OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.29 up to (excluding) 4.4.238 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.238 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.200 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.148 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.68 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.8.12 *cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:* -
Modified Analysis by [email protected]
Oct. 25, 2022
Action Type Old Value New Value Changed Reference Type https://www.starwindsoftware.com/security/sw-20210325-0002/ No Types Assigned https://www.starwindsoftware.com/security/sw-20210325-0002/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.8.13 *cpe:2.3:o:linux:linux_kernel:5.9.0:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:* OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.8.13 *cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12533:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12658:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12859:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13170:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13586:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13861:*:*:*:vsphere:*:* -
CVE Modified by [email protected]
Oct. 11, 2022
Action Type Old Value New Value Added Reference https://www.starwindsoftware.com/security/sw-20210325-0002/ [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 19, 2021
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20201103-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20201103-0002/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2020/dsa-4774 No Types Assigned https://www.debian.org/security/2020/dsa-4774 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 03, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20201103-0002/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 02, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 28, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 20, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html [No Types Assigned] Added Reference https://www.debian.org/security/2020/dsa-4774 [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 16, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:P/I:P/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1879981 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1879981 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.8.13 *cpe:2.3:o:linux:linux_kernel:5.9.0:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 11, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 06, 2020
Action Type Old Value New Value Changed Description A memory corruption flaw in the Linux kernel in versions before 5.9-rc7 in the HDLC_PPP module was found in the way it receives malformed packets by the PPP protocol. A remote user could use this flaw to crash the system or causing denial of service. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-25643
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-25643
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.03%
score
0.45715
percentile