CVE-2020-11565
Linux Kernel Mempolicy Mout Option Parsing Denial of Service
Description
An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”
INFO
Published Date :
April 6, 2020, 1:15 a.m.
Last Modified :
Aug. 4, 2024, 12:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
0.8
Public PoC/Exploit Available at Github
CVE-2020-11565 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2020-11565.
| URL | Resource |
|---|---|
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd | Mailing List Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html | |
| https://usn.ubuntu.com/4363-1/ | |
| https://usn.ubuntu.com/4364-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4367-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4368-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4369-1/ | |
| https://www.debian.org/security/2020/dsa-4667 | Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4698 |
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
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-11565 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-11565 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]
Aug. 04, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 26, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 11, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 21, 2024
Action Type Old Value New Value Added Tag MITRE disputed -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”. An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.” -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4698 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html [No Types Assigned] -
CVE Modified by [email protected]
May. 30, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4369-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 28, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4363-1/ [No Types Assigned] -
Modified Analysis by [email protected]
May. 26, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:P/A:P) Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Changed Reference Type https://usn.ubuntu.com/4364-1/ No Types Assigned https://usn.ubuntu.com/4364-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4367-1/ No Types Assigned https://usn.ubuntu.com/4367-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4368-1/ No Types Assigned https://usn.ubuntu.com/4368-1/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2020/dsa-4667 No Types Assigned https://www.debian.org/security/2020/dsa-4667 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* -
CVE Modified by [email protected]
May. 24, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4368-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 21, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4367-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 21, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4364-1/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 30, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4667 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 15, 2020
Action Type Old Value New Value Changed Description An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”. -
Initial Analysis by [email protected]
Apr. 06, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd Mailing List, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd No Types Assigned https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd Patch, Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.6.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-11565 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-2020-11565
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.14923
percentile