CVE-2023-52627
What it is
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7091r: Allow users to configure device events AD7091R-5 devices are supported by the ad7091r-5 driver together with the ad7091r-base driver. Those drivers declared iio events for notifying user space when ADC readings fall bellow the thresholds of low limit registers or above the values set in high limit registers. However, to configure iio events and their thresholds, a set of callback functions must be implemented and those were not present until now. The consequence of trying to configure ad7091r-5 events without the proper callback functions was a null pointer dereference in the kernel because the pointers to the callback functions were not set. Implement event configuration callbacks allowing users to read/write event thresholds and enable/disable event generation. Since the event spec structs are generic to AD7091R devices, also move those from the ad7091r-5 driver the base driver so they can be reused when support for ad7091r-2/-4/-8 be added.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.210
- Linux Kernel < 5.15.149
- Linux Kernel < 6.1.76
- Linux Kernel < 6.6.15
- Linux Kernel < 6.7.3
- Debian Linux 10.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-52627.md and follow it. Check whether this project is affected by CVE-2023-52627. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f
- https://git.kernel.org/stable/c/137568aa540a9f587c48ff7d4c51cdba08cfe9a4
- https://git.kernel.org/stable/c/1eba6f7ffa295a0eec098c107043074be7cc4ec5
- https://git.kernel.org/stable/c/49f322ce1f265935f15e5512da69a399f27a5091
- https://git.kernel.org/stable/c/55aca2ce91a63740278502066beaddbd841af9c6
- https://git.kernel.org/stable/c/89c4e63324e208a23098f7fb15c00487cecbfed2
- https://git.kernel.org/stable/c/020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f
- https://git.kernel.org/stable/c/137568aa540a9f587c48ff7d4c51cdba08cfe9a4
- https://git.kernel.org/stable/c/1eba6f7ffa295a0eec098c107043074be7cc4ec5
- https://git.kernel.org/stable/c/49f322ce1f265935f15e5512da69a399f27a5091
References
- https://git.kernel.org/stable/c/020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f
- https://git.kernel.org/stable/c/137568aa540a9f587c48ff7d4c51cdba08cfe9a4
- https://git.kernel.org/stable/c/1eba6f7ffa295a0eec098c107043074be7cc4ec5
- https://git.kernel.org/stable/c/49f322ce1f265935f15e5512da69a399f27a5091
- https://git.kernel.org/stable/c/55aca2ce91a63740278502066beaddbd841af9c6
- https://git.kernel.org/stable/c/89c4e63324e208a23098f7fb15c00487cecbfed2
- https://git.kernel.org/stable/c/020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f
- https://git.kernel.org/stable/c/137568aa540a9f587c48ff7d4c51cdba08cfe9a4
- https://git.kernel.org/stable/c/1eba6f7ffa295a0eec098c107043074be7cc4ec5
- https://git.kernel.org/stable/c/49f322ce1f265935f15e5512da69a399f27a5091
- https://git.kernel.org/stable/c/55aca2ce91a63740278502066beaddbd841af9c6
- https://git.kernel.org/stable/c/89c4e63324e208a23098f7fb15c00487cecbfed2
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html