CVE-2023-52483
Linux Kernel MCTP Route Lookup RCE
Description
In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups (mctp_route_lookup and mctp_route_lookup_null) traverse the net's route list without the RCU read lock held. This means the route lookup is subject to preemption, resulting in an potential grace period expiry, and so an eventual kfree() while we still have the route pointer. Add the proper read-side critical section locks around the route lookups, preventing premption and a possible parallel kfree. The remaining net->mctp.routes accesses are already under a rcu_read_lock, or protected by the RTNL for updates. Based on an analysis from Sili Luo <[email protected]>, where introducing a delay in the route lookup could cause a UAF on simultaneous sendmsg() and route deletion.
INFO
Published Date :
Feb. 29, 2024, 6:15 a.m.
Last Modified :
Jan. 13, 2025, 5:53 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-2023-52483.
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-2023-52483 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52483 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.
-
Initial Analysis by [email protected]
Jan. 13, 2025
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 Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.137 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.59 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.5.8 *cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc5:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a No Types Assigned https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a Patch Changed Reference Type https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a No Types Assigned https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a Patch Changed Reference Type https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 No Types Assigned https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 Patch Changed Reference Type https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 No Types Assigned https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 Patch Changed Reference Type https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c No Types Assigned https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c Patch Changed Reference Type https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c No Types Assigned https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c Patch Changed Reference Type https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 No Types Assigned https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 Patch Changed Reference Type https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 No Types Assigned https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a Added Reference https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 Added Reference https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c Added Reference https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 -
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 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 29, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: mctp: perform route lookups under a RCU read-side lock Our current route lookups (mctp_route_lookup and mctp_route_lookup_null) traverse the net's route list without the RCU read lock held. This means the route lookup is subject to preemption, resulting in an potential grace period expiry, and so an eventual kfree() while we still have the route pointer. Add the proper read-side critical section locks around the route lookups, preventing premption and a possible parallel kfree. The remaining net->mctp.routes accesses are already under a rcu_read_lock, or protected by the RTNL for updates. Based on an analysis from Sili Luo <[email protected]>, where introducing a delay in the route lookup could cause a UAF on simultaneous sendmsg() and route deletion. Added Reference Linux https://git.kernel.org/stable/c/6c52b12159049046483fdb0c411a0a1869c41a67 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c [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-2023-52483 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-2023-52483
weaknesses.