Important: Red Hat Security Advisory: jmc security update

An update for jmc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

lz4-java: lz4-java: Information Disclosure via Insufficient Output Buffer Clearing

A flaw was found in lz4-java. This vulnerability allows disclosure of sensitive data via crafted compressed input due to insufficient clearing of the output buffer in Java-based decompressor implementations...

PT-2026-47098

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability...

ALSA-2026:20568 Important: jmc security update

JDK Mission Control is a powerful profiler for HotSpot JVMs and has an advanced set of tools that enables efficient and detailed analysis of the extensive data collected by JDK Flight Recorder. The tool chain enables developers and administrators to collect and analyze data from Java applications...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: erofs: Fixed a memory leak caused by LZMA global compressed deduplication. When testing microLZMA EROFS images with the new global compressed deduplication feature enabled -Ededupe, I discovered that some short-lived temporary...

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

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix for lz4 inplace decompression Currently, EROFS can map another compressed buffer for inplace decompression, which was used to handle cases where some pages of compressed data are not actually in-place I/O. However, lik...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: LZ4: fixed the issue of partial reading beyond the bounds of the buffer during decoding. During partialDecoding, an EOF occurs if either the output buffer is full or if reading further beyond the offset is not possible. In some...

Astra Linux – Vulnerability in lz4

There is a flaw in lz4. An attacker who submits a crafted file to an application that uses lz4 may be able to trigger an integer overflow, resulting in the call to memmove with a negative size argument. This can lead to an out-of-bounds write and/or a system crash. The most significant impact of...

Updated firefox & thunderbird packages fix security vulnerabilities

LZ4 compression library issue. CVE-2025-62813 libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content. CVE-2026-32776 libexpat before 2.7.5 allows an infinite loop while parsing DTD content. CVE-2026-32777 libexpat before 2.7.5 allows a NULL pointer...

MGASA-2026-0145 Updated firefox & thunderbird packages fix security vulnerabilities

LZ4 compression library issue. CVE-2025-62813 libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content. CVE-2026-32776 libexpat before 2.7.5 allows an infinite loop while parsing DTD content. CVE-2026-32777 libexpat before 2.7.5 allows a NULL pointer...

SUSE CVE-2026-42583

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

UBUNTU-CVE-2026-42583

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583 Netty: Lz4FrameDecoder resource exhaustion

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583 Netty: Lz4FrameDecoder resource exhaustion

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583

CVE-2026-42583 (Netty) affects Netty’s Lz4FrameDecoder. Before versions 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf sized to decompressedLength (up to 32 MB per block) prior to running the LZ4 step. A peer can trigger this allocation with only a 21-byte header plus compres...

Security Bulletin: IBM Automation Decision Services for April 2026- Multiple CVEs addressed

Summary In addition to many updates of operating system level packages, the following security vulnerabilities are addressed with IBM Automation Decision Services. See full list below. Vulnerability Details CVEID:CVE-2025-12183 DESCRIPTION: Out-of-bounds memory operations in org.lz4:lz4-java 1.8....

GHSA-MJ4R-2HFC-F8P6 Netty Lz4FrameDecoder is vulnerable to resource exhaustion

Summary Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if compressedLength == 1 - to force that allocation. Details...

Allocation of Resources Without Limits or Throttling

Overview io.netty:netty-codec is an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the Lz4FrameDecoder component. An attacker can cause excessive memory allocation by sending...