CVE-2023-52941

MEDIUM EPSS 9.7%
Published Mar 27, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Mar 27, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: can: isotp: split tx timer into transmission and timeout The timer for the transmission of isotp PDUs formerly had two functions: 1. send two consecutive frames with a given time gap 2. monitor the timeouts for flow control frames and the echo frames This led to larger txstate checks and potentially to a problem discovered by syzbot which enabled the panic_on_warn feature while testing. The former 'txtimer' function is split into 'txfrtimer' and 'txtimer' to handle the two above functionalities with separate timer callbacks. The two simplified timers now run in one-shot mode and make the state transitions (especially with isotp_rcv_echo) better understandable.

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
9.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥6.0.9  –  <6.1
linuxlinux_kernel*≥6.1.1  –  <6.1.11
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/4f027cba8216f42a18b544842efab134f8b1f9f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cae4c9bc35f72af5d4a079bb9d9fd62c4088a411
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4f027cba8216f42a18b544842efab134f8b1f9f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cae4c9bc35f72af5d4a079bb9d9fd62c4088a411
    Patch