7.8

CVE-2023-3106: fedoraproject fedora NULL Pointer Dereference

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-3106DEBIAN-CVE-2023-3106
Published 12-07-2023Last modified 20-11-2025
Open JSON

Vulnerability summary

CVE-2023-3106 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in fedoraproject fedora. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.5% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.29%
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 1 · Related 1
SUSE-SU-2023:3324-1

Timeline

  1. 12-07-2023
    PublishedVulnerability first disclosed.
  2. 20-11-2025
    Last modifiedVulnerability information updated.

Description

A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.29%

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

Ubuntu52 products
  • linux< 4.4.0-184.214
  • linux-aws< 4.4.0-1073.77 | < 4.4.0-1109.120
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Debian1 product
  • linux< 4.8.5-1
Fedoraproject1 product
Linux1 product
  • linux_kernel≥ 3.15, < 3.16.39 | ≥ 3.17, < 4.4.223 | ≥ 4.5, < 4.7.10 | 4.8:rc1 | 4.8:rc2 | 4.8:rc3 | 4.8:rc4 | 4.8:rc5 | 4.8:rc6

4 vendors · 55 products

References

7 links