352 matches found
CVE-2026-54522
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
UBUNTU-CVE-2026-54522
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
GHSA-4MRV-5P47-P938 MessagePack::Buffer#clear Use-After-Free that Enables Cross-Buffer Disclosure
Summary MessagePack::Bufferclear shifts out every chunk and returns its 4 KiB rmem page to the shared pool, but does not reset the buffer's rmem cursor rmemlast, rmemend, rmemowner. The next write sees "unused rmem space" left over from the freed page and hands back a slice of memory that has...
EUVD-2026-51235
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
CVE-2026-54522
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
CVE-2026-54522 MessagePack::Buffer#clear Use-After-Free that Enables Cross-Buffer Disclosure
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
CVE-2026-54522 MessagePack::Buffer#clear Use-After-Free that Enables Cross-Buffer Disclosure
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
CVE-2026-54522 MessagePack::Buffer#clear Use-After-Free that Enables Cross-Buffer Disclosure
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
CVE-2026-54522
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
CVE-2026-54522
CVE-2026-54522 affects MessagePack for Ruby prior to 1.8.2, where MessagePack::Buffer#clear can leave internal rmem pointers stale after a chunk return, enabling a subsequent Buffer#write to alias the freed page and potentially disclose or corrupt cross-buffer data. Root cause: stale rmem_last/rm...
CVE-2026-54522
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
PT-2026-66639
Summary MessagePack::Bufferclear shifts out every chunk and returns its 4 KiB rmem page to the shared pool, but does not reset the buffer's rmem cursor rmem last, rmem end, rmem owner. The next write sees "unused rmem space" left over from the freed page and hands back a slice of memory that has...
Linux Distros Unpatched Vulnerability : CVE-2026-54522
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leave...
CVE-2026-54522: Use After Free
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...
Security update for python-msgpack-python
This update for python-msgpack-python fixes the following issue: CVE-2026-57585: Unpacker reuse after a caught error can lead to an out-of-bounds read and a crash bsc1269947. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...
SUSE-SU-2026:3297-1 Security update for python-msgpack-python
This update for python-msgpack-python fixes the following issue: - CVE-2026-57585: Unpacker reuse after a caught error can lead to an out-of-bounds read and a crash bsc1269947...
PT-2026-66528
Name of the Vulnerable Software and Affected Versions MessagePack for Ruby versions prior to 1.8.2 Description A use-after-free issue exists in the MessagePack::Bufferclear function within ext/msgpack/buffer.c. When this function is called, it returns memory pages to a shared pool but fails to...
Security update for python-msgpack
This update for python-msgpack fixes the following issue CVE-2026-57585: Unpacker reuse after a caught error can lead to an out-of-bounds read and a crash bsc1269947. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper...
SUSE-SU-2026:3113-1 Security update for python-msgpack
This update for python-msgpack fixes the following issue - CVE-2026-57585: Unpacker reuse after a caught error can lead to an out-of-bounds read and a crash bsc1269947...
