Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2024-26475
CVE-2024-26475:
NixOS vulnerability analysis and mitigation
Overview
CVE-2024-26475 affects radare2 versions 0.9.7 through 5.8.6, with a fix implemented in version 5.8.8. The vulnerability allows local attackers to cause a denial of service through the grubsfsread_extent function (NVD, GitHub).
Technical details
The vulnerability is classified as a NULL Pointer Dereference (CWE-476) with a CVSS v3.1 base score of 5.5 (MEDIUM). The issue occurs in the grubsfsreadextent function where there is insufficient validation of the treeblock allocation state, leading to a NULL pointer dereference when the tree is assigned the value of treeblock cast to a struct grubsfs_btree* (GitHub).
Impact
When exploited, the vulnerability results in a denial of service condition affecting the overall program performance. The NULL pointer dereference causes undefined behavior in C, typically resulting in a segmentation fault or access violation that crashes the program (GitHub).
Mitigation and workarounds
The vulnerability has been fixed in radare2 version 5.8.8 by adding proper validation of the grub_malloc allocation state. Users are advised to upgrade to version 5.8.8 or later to mitigate this vulnerability (GitHub).
Additional resources
Source: This report was generated using AI
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