7.8

CVE-2025-21762

arp: use RCU protection in arp_xmit()

In the Linux kernel, the following vulnerability has been resolved:

arp: use RCU protection in arp_xmit()

arp_xmit() can be called without RTNL or RCU protection.

Use RCU protection to avoid potential UAF.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.4 < 5.4.291
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.235
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.179
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.129
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.79
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.16
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.4
Linux ≫ Linux Kernel Version6.14 Updaterc1
Linux ≫ Linux Kernel Version6.14 Updaterc2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.14
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/01d1b5c9abcaff29a43f1d17a19c33eec92c7dbe
Patch
https://git.kernel.org/stable/c/2c331718d3389b6c5f6855078ab7171849e016bd
Patch
https://git.kernel.org/stable/c/a42b69f692165ec39db42d595f4f65a4c8f42e44
Patch
https://git.kernel.org/stable/c/e9f4dee534eb1b225b0a120395ad9bc2afe164d3
Patch
https://git.kernel.org/stable/c/f189654459423d4d48bef2d120b4bfba559e6039
Patch
https://git.kernel.org/stable/c/10f555e3f573d004ae9d89b3276abb58c4ede5c3
Patch
https://git.kernel.org/stable/c/307cd1e2d3cb1cbc6c40c679cada6d7168b18431
Patch
https://git.kernel.org/stable/c/d9366ac2f956a1948b68c0500f84a3462ff2ed8a
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-503939.html