EUVD-2025-210055

An out-of-bounds read in the ext4extbinsearchidx function in src/ext4extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before...

CVE-2025-70100

CVE-2025-70100 affects lwext4 1.0.0. A divide-by-zero in ext4_block_set_lb_size (src/ext4_blockdev.c) can cause denial of service when processing a malformed ext4 image, triggering a Floating-Point Exception or crash due to missing lb_size validation during mount/image handling. Connected sources...

CVE-2025-70101

lwext4 1.0.0 exposes an out-of-bounds read in ext4_ext_binsearch_idx (src/ext4_extent.c) that can trigger denial of service when processing a crafted ext4 image. The vulnerability stems from insufficient validation of extent header fields prior to performing a binary search over extent index entr...

EUVD-2025-210054

A divide-by-zero vulnerability in the ext4blocksetlbsize function in src/ext4blockdev.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by providing a malformed ext4 filesystem image that results in a zero logical block size. The vulnerability is triggered during mount o...

PT-2026-45934

Name of the Vulnerable Software and Affected Versions lwext4 version 1.0.0 Description A divide-by-zero issue exists in the ext4 block set lb size function within the src/ext4 blockdev.c file. This occurs when a malformed ext4 filesystem image with a zero logical block size is provided, leading t...

CVE-2025-70100

A divide-by-zero vulnerability in the ext4blocksetlbsize function in src/ext4blockdev.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by providing a malformed ext4 filesystem image that results in a zero logical block size. The vulnerability is triggered during mount o...