Astra Linux – Vulnerability in tar

GNU Tar version 1.34 has a one-byte out-of-bounds read operation, which allows for the use of uninitialized memory in a conditional jump. Exploitation to change the control flow of the program has not been demonstrated. The issue occurs in the fromheader section of the list.c file, due to a V7...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ubifswbufwritenolock: A read out-of-bounds issue exists in this function. This issue occurs when ubifswbufwritenolock attempts to access memory beyond the allocated bounds of the buffer buf. Here’s an example of how this issue...

Astra Linux – Vulnerability in Thunderbird

It may be possible for an attacker to create an email message that causes Thunderbird to perform an out-of-bounds write operation, writing one byte when processing the message. This vulnerability affects Thunderbird versions prior to 91.6.1...

Astra Linux – Vulnerability in Flatpak

Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.12.3 and 1.10.6, Flatpak did not properly validate whether the permissions displayed to the user during installation match the actual permissions granted to the app at runtime, especially when there was a nu...

Astra Linux – Vulnerability in DjVuLibre

DjVuLibre 3.5.27 allows attackers to carry out a denial-of-service attack application crashes due to an out-of-bounds read by creating a corrupted JB2 image file. This occurs due to improper handling of the JB2 image file in the JB2Dict::JB2Codec::getdirectcontext function in libdjvu/JB2Image.h,...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: spi: sun6i – reduced the DMA RX transfer width to a single byte. Through empirical testing, it has been determined that sometimes RX SPI transfers with DMA enabled may return corrupted data. This issue arises due to the loss of o...

Astra Linux – Vulnerability in dnsmasq

A single-byte, non-arbitrary write/use-after-free flaw was discovered in dnsmasq. This flaw allows an attacker to send a crafted packet processed by dnsmasq, potentially causing a denial of service...

glib: Integer Overflow in GLib GIO Attribute Escaping Causes Heap Buffer Overflow

A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service DoS via an integer overflow in GLib's GIO GLib Input/Output escapebytestring function when processing malicious file or remote filesystem attribute values...

ANT-2026-6615Y595 · wolfSSL · Heap Buffer Overflow

heap-buffer-overflow medium CVE-2026-5448 Severity Claude medium · Security research firm medium · Maintainer - REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-6615Y595: Final Assessment: 2-Byte Heap Overflow in wolfSSLX509notAfter /...

Microsoft DirectX NULL Byte Overwrite Vulnerability

Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime media file...

CVE-2026-32740

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow write vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by craftin...

CVE-2026-32739

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Boxstts::getsampleduration, consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and...

CVE-2026-32739

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Boxstts::getsampleduration, consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and...

glib: Integer Overflow in GLib GIO Attribute Escaping Causes Heap Buffer Overflow

A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service DoS via an integer overflow in GLib's GIO GLib Input/Output escapebytestring function when processing malicious file or remote filesystem attribute values...

CLSA-2026-1779183103 vim: Fix of 6 CVEs

CVE-2021-3903: do not set VALIDBOTLINE in updatetopline when screen is invalid - CVE-2022-1616: tighten appendcommand loop bound + pre-write length check to avoid buffer overflow with composing chars - CVE-2022-2042: initialize attr in spellmoveto and capture emptyline before mlgetbuf invalidates...

Malicious code in byte-parser (npm)

Part of the Mini Shai-Hulud supply chain attack campaign in which a threat actor compromised the npm account atool and published 631 malicious versions across 314 npm packages in an automated 22-minute burst. Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun...

limit-size (>=0.1.3 <=0.1.4), limit-size-webpack-plugin (>=1.0.0 <=1.0.5) potentially affected by unknown CVE via byte-parser (=1.0.0)

byte-parser NPM version =1.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on byte-parser and may be impacted: - limit-size =0.1.3, =1.0.0, =1.0.5 Source cves: unknown CVE Source advisory: SNYK:JS-BYTEPARSER-16754340...

Security Bulletin: IBM i is Affected by Improper Handling of Special Elements and Improper Neutralization of Null Byte Vulnerabilities in OpenSSH [CVE-2025-61984, CVE-2025-61985]

Summary OpenSSH for IBM i is vulnerable to allowing control characters in usernames CVE-2025-61984 and allowing null bytes in the URI CVE-2025-61985 as described in the vulnerability details section. Vulnerability Details CVEID:CVE-2025-61984 DESCRIPTION: ssh in OpenSSH before 10.1 allows control...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write in the JP2 encoder. An attacker can cause a single-byte heap buffer overwrite by specifying certain options. Remediation A fix was pushed into the master branch but not yet published. References - GitHub Advisory -...

GHSA-533M-3WF6-C33V ImageMagick: Heap Buffer Over-Write of a single byte in the JP2 encoder.

An incorrect check in the JP2 will result in an heap buffer over-write of a single byte when specifying certain options...