JLSEC-2026-573

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entrycount == 0 creating no chunks while still passing validation...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the core sequence parsing process. An attacker can cause a crash or denial of service by providing a specially crafted HEIF file that manipulates the stco.entrycount, saio.entrycount, and saiz.samplecount values to...

CVE-2026-41071 libheif: Heap buffer over-read in SampleAuxInfoReader via crafted HEIF sequence file with mismatched saiz sample count

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow out-of-bounds read in the SampleAuxInfoReader constructor. T...

EUVD-2026-31503

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entrycount == 0 creating no chunks while still passing validation...

CVE-2026-41069

Summary: CVE-2026-41069 affects libheif up to v1.21.2, where a malformed HEIF sequence can trigger an out-of-bounds read in core sequence parsing, leading to DoS. The issue occurs when stco.entry_count == 0 but saiz.sample_count > 0, causing the SampleAuxInfoReader loop to dereference an empty...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenEXR vulnerabilities (USN-8259-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8259-1 advisory. Quang Luong discovered that OpenEXR incorrectly handled sample count accumulation when...

USN-8259-1 openexr vulnerabilities

Quang Luong discovered that OpenEXR incorrectly handled sample count accumulation when processing deep scan line image files. An attacker could possibly use this issue to cause OpenEXR to crash, resulting in a denial of service, or execute arbitrary code. CVE-2026-27622 It was discovered that...

CVE-2025-39686 comedi: Make insn_rw_emulate_bits() do insn->n samples

In the Linux kernel, the following vulnerability has been resolved: comedi: Make insnrwemulatebits do insn-n samples The insnrwemulatebits function is used as a default handler for INSNREAD instructions for subdevices that have a handler for INSNBITS but not for INSNREAD. Similarly, it is used as...

CVE-2025-48073

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In version 3.3.2, when reading a deep scanline image with a large sample count in reduceMemory mode, it is possible to crash a target application with a...

OpenEXR ScanLineProcess::run_fill NULL Pointer Write In "reduceMemory" Mode

Summary When reading a deep scanline image with a large sample count in reduceMemory mode, it is possible to crash a target application with a NULL pointer dereference in a write operation. Details In the ScanLineProcess::runfill function, implemented in...

MLRan: a Behavioural Dataset for Ransomware Analysis and Detection

Ransomware remains a critical threat to cybersecurity, yet publicly available datasets for training machine learning-based ransomware detection models are scarce and often have limited sample size, diversity, and reproducibility. In this paper, we introduce MLRan, a behavioural ransomware dataset...

OpenEXR 缓冲区错误漏洞

OpenEXR is an open standard for high dynamic range image HDR file formats. A buffer overflow vulnerability exists in OpenEXR 3.2.1 and prior versions that stems from an inability to validate the number of scanline samples that contain deep scanline data. An attacker could exploit this vulnerabili...