5.5

CVE-2023-52627: debian debian_linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2023-52627DEBIAN-CVE-2023-52627
Published 26-03-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2023-52627 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 16 · Related 17
DLA-3842-1DSA-5681-1SUSE-SU-2024:1490-1SUSE-SU-2024:1659-1SUSE-SU-2024:1663-1USN-6766-1

Timeline

  1. 26-03-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu104 products
  • linux< 5.15.0-106.116
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1061.67
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ ca69300173b642ba64118200172171ea5967b6c5, < 1eba6f7ffa295a0eec098c107043074be7cc4ec5 | ≥ ca69300173b642ba64118200172171ea5967b6c5, < 49f322ce1f265935f15e5512da69a399f27a5091 | ≥ ca69300173b642ba64118200172171ea5967b6c5, < 137568aa540a9f587c48ff7d4c51cdba08cfe9a4 | ≥ ca69300173b642ba64118200172171ea5967b6c5, < 89c4e63324e208a23098f7fb15c00487cecbfed2 | ≥ ca69300173b642ba64118200172171ea5967b6c5, < 55aca2ce91a63740278502066beaddbd841af9c6 | ≥ ca69300173b642ba64118200172171ea5967b6c5, < 020e71c7ffc25dfe29ed9be6c2d39af7bd7f661f | 5.6
  • linux_kernel≥ 5.6, < 5.10.210 | ≥ 5.11, < 5.15.149 | ≥ 5.16, < 6.1.76 | ≥ 6.2, < 6.6.15 | ≥ 6.7, < 6.7.3

3 vendors · 108 products

References

24 links
Show all 24 references