CVE-2023-52445
Pvrusb2 Linux Kernel Use After Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.
INFO
Published Date :
Feb. 22, 2024, 5:15 p.m.
Last Modified :
June 27, 2024, 12:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
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-2023-52445.
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-2023-52445 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52445 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.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 27, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 14, 2024
Action Type Old Value New Value 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/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795 No Types Assigned https://git.kernel.org/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795 Patch Changed Reference Type https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e No Types Assigned https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e Patch Changed Reference Type https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb No Types Assigned https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb Patch Changed Reference Type https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee9ff521c No Types Assigned https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee9ff521c Patch Changed Reference Type https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d No Types Assigned https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d Patch Changed Reference Type https://git.kernel.org/stable/c/ded85b0c0edd8f45fec88783d7555a5b982449c1 No Types Assigned https://git.kernel.org/stable/c/ded85b0c0edd8f45fec88783d7555a5b982449c1 Patch Changed Reference Type https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08 No Types Assigned https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08 Patch Changed Reference Type https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab No Types Assigned https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab Patch Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.19.306 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.268 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11.0 up to (excluding) 5.15.148 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16.0 up to (excluding) 6.1.75 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2.0 up to (excluding) 6.6.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7.0 up to (excluding) 6.7.2 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 22, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack. Added Reference Linux https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee9ff521c [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/ded85b0c0edd8f45fec88783d7555a5b982449c1 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-52445 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-2023-52445
weaknesses.