Executive Summary

Informations
Name CVE-2023-52976 First vendor Publication 2025-03-27
Vendor Cve Last vendor Modification 2025-04-15

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

efi: fix potential NULL deref in efi_mem_reserve_persistent

When iterating on a linked list, a result of memremap is dereferenced without checking it for NULL.

This patch adds a check that falls back on allocating a new page in case memremap doesn't succeed.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[ardb: return -ENOMEM instead of breaking out of the loop]

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52976

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3579

Sources (Detail)

https://git.kernel.org/stable/c/87d4ff18738fd71e7e3c10827c80257da6283697
https://git.kernel.org/stable/c/966d47e1f27c45507c5df82b2a2157e5a4fd3909
https://git.kernel.org/stable/c/a2e6a9ff89f13666a1c3ff7195612ab949ea9afc
https://git.kernel.org/stable/c/d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23c
https://git.kernel.org/stable/c/d92a25627bcdf264183670da73c9a60c0bac327e
Source Url

Alert History

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Date Informations
2025-06-26 02:24:56
  • Multiple Updates
2025-06-25 12:27:53
  • Multiple Updates
2025-06-24 02:29:32
  • Multiple Updates
2025-05-27 13:39:35
  • Multiple Updates
2025-05-27 02:29:02
  • Multiple Updates
2025-03-31 17:20:33
  • Multiple Updates
2025-03-27 21:20:35
  • First insertion