CVE-2023-4732
Linux Kernel PMD DoS Vulnerability
Description
A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.
INFO
Published Date :
Oct. 3, 2023, 5:15 p.m.
Last Modified :
Jan. 25, 2024, 8:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.0
Affected Products
The following products are affected by CVE-2023-4732
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-2023-4732.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6901 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2023:7077 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2023:7539 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2024:0412 | |
| https://access.redhat.com/security/cve/CVE-2023-4732 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2236982 | Issue Tracking 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-4732 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-4732 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. 23, 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]
Jan. 25, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0412 [No types assigned] -
Modified Analysis by [email protected]
Jan. 21, 2024
Action Type Old Value New Value Changed Reference Type https://access.redhat.com/errata/RHSA-2023:6901 No Types Assigned https://access.redhat.com/errata/RHSA-2023:6901 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:7077 No Types Assigned https://access.redhat.com/errata/RHSA-2023:7077 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:7539 No Types Assigned https://access.redhat.com/errata/RHSA-2023:7539 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* OR *cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:8.0_aarch64:*:*:*:*:*:*:* *cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0_aarch64:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0_s390x:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 28, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7539 [No types assigned] -
CVE Modified by [email protected]
Nov. 14, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:6901 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7077 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added CWE Red Hat, Inc. CWE-366 -
Initial Analysis by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-4732 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-4732 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2236982 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2236982 Issue Tracking, Third Party Advisory Added CWE NIST CWE-362 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.13.19 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 04, 2023
Action Type Old Value New Value Changed Description A flaw was found in the Linux Kernel's memory management subsytem. A task exits and releases a 2MB page in a vma (vm_area_struct) and hits the BUG statement in pfn_swap_entry_to_page() referencing pmd_t x. A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-4732 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-2023-4732
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} -0.00%
score
0.05677
percentile