CVE-2024-47712

MEDIUM EPSS 14.0%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param In the `wilc_parse_join_bss_param` function, the TSF field of the `ies` structure is accessed after the RCU read-side critical section is unlocked. According to RCU usage rules, this is illegal. Reusing this pointer can lead to unpredictable behavior, including accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the TSF value is now stored in a local variable `ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is then assigned using this local variable, ensuring that the TSF value is safely accessed.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
14.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥5.4.273  –  <5.5
linuxlinux_kernel*≥5.10.214  –  <5.10.227
linuxlinux_kernel*≥5.15.153  –  <5.15.168
linuxlinux_kernel*≥6.1.83  –  <6.1.113
linuxlinux_kernel*≥6.6.23  –  <6.6.54
linuxlinux_kernel*≥6.7.11  –  <6.8
linuxlinux_kernel*≥6.8.2  –  <6.9
linuxlinux_kernel*>6.9  –  <6.10.13
linuxlinux_kernel*≥6.11  –  <6.11.2

References 10

  • git.kernel.org https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5a24cedc243ace5ed7c1016f52a7bfc8f5b07815
  • git.kernel.org https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b
    Patch