CVE-2021-47518 : In the Linux kernel, the following vulnerability has been resolved: nfc: fix po

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()).

Published 2024-05-24 15:15:14

Updated 2024-06-10 18:43:44

Source Linux

View at NVD, CVE.org

Products affected by CVE-2021-47518

Linux » Linux Kernel
Versions from including (>=) 4.5 and before (<) 4.9.293
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.11 and before (<) 5.15.8
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.10 and before (<) 4.14.258
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 3.12 and before (<) 4.4.295
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.20 and before (<) 5.4.165
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.15 and before (<) 4.19.221
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.5 and before (<) 5.10.85
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-47518

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 12 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-47518

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST	2024-06-10
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-47518

CWE-476 NULL Pointer Dereference

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

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-47518

https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa

nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done - kernel/git/stable/linux.git - Linux kernel stable tree
Patch

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Vulnerability Details : CVE-2021-47518

Products affected by CVE-2021-47518

Exploit prediction scoring system (EPSS) score for CVE-2021-47518

CVSS scores for CVE-2021-47518

CWE ids for CVE-2021-47518

References for CVE-2021-47518