CVE-2026-19028

Katalog CVE

CVSS 6.8 · Medium EPSS 0,19%

Kerentanan Out-of-bounds Read. Skor CVSS 4.0 6.8 (Medium) menurut CNA.

Deskripsi (NVD)

H5Z__filter_fletcher32 in H5Zfletcher32.c in HDF5 prior to 2.3.0 computes the data length to checksum by subtracting the 4-byte trailing checksum size from the input buffer size without checking that the buffer is at least 4 bytes, allowing a size_t underflow. This allows attackers to cause a denial of service (massively out-of-bounds read and application crash in H5_checksum_fletcher32) via a crafted HDF5 file with a Fletcher32-filtered chunk smaller than 4 bytes, triggered via H5Dread, e.g. by the h5ls or h5dump tools.

Rincian

Terbit di NVD

6 Agustus 2026

Terakhir diubah

6 Oktober 2026

Status NVD

Awaiting Analysis

CVSS 4.0

6.8 (Medium), sumber CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read
CWE-190: Integer Overflow or Wraparound
CWE-1284: Improper Validation of Specified Quantity in Input

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 8,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/HDFGroup/hdf5/issues/6488
• https://github.com/HDFGroup/hdf5/issues/6490
• https://github.com/HDFGroup/hdf5/pull/6497