CVE-2023-52923

MEDIUM EPSS 15.3%
Published Jan 20, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jan 20, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: adapt set backend to use GC transaction API Use the GC transaction API to replace the old and buggy gc API and the busy mark approach. No set elements are removed from async garbage collection anymore, instead the _DEAD bit is set on so the set element is not visible from lookup path anymore. Async GC enqueues transaction work that might be aborted and retried later. rbtree and pipapo set backends does not set on the _DEAD bit from the sync GC path since this runs in control plane path where mutex is held. In this case, set elements are deactivated, removed and then released via RCU callback, sync GC never fails.

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
15.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥4.1  –  <4.19.316
linuxlinux_kernel*≥4.20  –  <5.4.262
linuxlinux_kernel*≥5.5  –  <5.10.198
linuxlinux_kernel*≥5.11  –  <5.15.134
linuxlinux_kernel*≥5.16  –  <6.1.56
linuxlinux_kernel*≥6.2  –  <6.4.11
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/146c76866795553dbc19998f36718d7986ad302b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/479a2cf5259347d6a1f658b0f791d27a34908e91
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c357648929c8dff891502349769aafb8f0452bc2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cb4d00b563675ba8ff6ef94b077f58d816f68ba3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/df650d6a4bf47248261b61ef6b174d7c54034d15
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e4d71d6a9c7db93f7bf20c3a0f0659d63d7de681
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f6c383b8c31a93752a52697f8430a71dcbc46adf
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/146c76866795553dbc19998f36718d7986ad302b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/479a2cf5259347d6a1f658b0f791d27a34908e91
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c357648929c8dff891502349769aafb8f0452bc2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cb4d00b563675ba8ff6ef94b077f58d816f68ba3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/df650d6a4bf47248261b61ef6b174d7c54034d15
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e4d71d6a9c7db93f7bf20c3a0f0659d63d7de681
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f6c383b8c31a93752a52697f8430a71dcbc46adf
    Patch