CVE-2023-47233
MEDIUMLinux Kernel < 6.5.10 - Use-After-Free in brcm80211 Device Unplugging
Title source: llmDescription
The brcm80211 component in the Linux kernel through 6.5.10 has a brcmf_cfg80211_detach use-after-free in the device unplugging (disconnect the USB by hotplug) code. For physically proximate attackers with local access, this "could be exploited in a real world scenario." This is related to brcmf_cfg80211_escan_timeout_worker in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c.
References (7)
Core 7
Core References
Issue Tracking, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1216702
Mailing List, Patch
https://marc.info/?l=linux-kernel&m=169907678011243&w=2
Mailing List, Patch
https://lore.kernel.org/all/20231104054709.716585-1-zyytlz.wz%40163.com/
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Scores
CVSS v3
4.3
EPSS
0.0032
EPSS Percentile
23.3%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-416
Status
published
Products (1)
linux/linux_kernel
< 6.5.10
Published
Nov 03, 2023
Tracked Since
Feb 18, 2026