CVE-2021-47518

Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 24 May 2024, 15:09
Last modified:11 May 2026, 13:56

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 May 2024, 15:09
Published
Vulnerability first disclosed
11 May 2026, 13:56
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done The done() netlink callback nfc_genl_dump_ses_done() should check if received argument is non-NULL, because its allocation could fail earlier in dumpit() (nfc_genl_dump_ses()).

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 3%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • linux•linux

    ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 87cdb8789c38e44ae5454aafe277997c950d00ed | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 69bb79a8f5bb9f436b6f1434ca9742591b7bbe18 | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 811a7576747760bcaf60502f096d1e6e91d566fa | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 3b861a40325eac9c4c13b6c53874ad90617e944d | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 48fcd08fdbe05e35b650a252ec2a2d96057a1c7a | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 83ea620a1be840bf05089a5061fb8323ca42f38c | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < fae9705d281091254d4a81fa2da9d22346097dca | ≥ ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 4cd8371a234d051f9c9557fcbb1f8c523b1c0d10 | 3.12

  • linux•linux_kernel

    ≥ 3.12, < 4.4.295 | ≥ 4.5, < 4.9.293 | ≥ 4.10, < 4.14.258 | ≥ 4.15, < 4.19.221 | ≥ 4.20, < 5.4.165 | ≥ 5.5, < 5.10.85 | ≥ 5.11, < 5.15.8

References (8)