CVE-2026-27654-PoC

CVE-2026-27654 – nginx ngxhttpdavmodule DAV Alias パス処理 PoC このリポジトリは、nginx の ngxhttpdavmodule におけるヒープオーバーフローの脆弱性 CVE‑2026‑27654 の概念実証（PoC）エクスプロイトを提供します。このバグは、特別に細工された Destination ヘッダーと alias ベースのロケーションを伴う MOVE/COPY リクエストを処理する際に発生する size‑t アンダーフローに起因します。 ⚠️ 免責事項: このツールは認可されたセキュリティ研究およびテスト専用...

Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (crlsa-2021_2714)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20212714 advisory. kernel: sizet-to-int conversion vulnerability in the filesystem layer CVE-2021-33909 kernel: race condition for removal of the HCI controller CVE-2021-3239...

CVE-2026-27654

CVE-2026-27654 NGINX ngxhttpdavmodule における sizet アンダーフローによるヒープバッファオーバーフロー リモートDoS / 潜在的なRCE 説明 src/http/modules/ngxhttpdavmodule.c 内の ngxhttpdavcopymovehandler は、 Destination ヘッダのURIパスコンポーネントからロケーションプレフィックスの長さを引くことで、 宛先URIの長さを計算します。どちらの値も sizet unsigned 64-bit です。 宛先パスがロケーションプレフィックスより短い場合、減算結果は 0...

CVE-2026-44235

A flaw was found in rabbitmq-c, a C-language AMQP Advanced Message Queuing Protocol client library. A malicious AMQP server or an on-path attacker can send an undersized HEADER or METHOD frame during client login, leading to an unsigned sizet underflow. This underflow causes an out-of-bounds read...

EUVD-2026-82333

rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized HEADER or METHOD frame during client login and cause unsigned sizet underflow in amqphandleinput in librabbitmq/amqpconnection.c. The parser subtracts HEADERSIZE, fixed...

CVE-2026-44235

rabbitmq-c (a C-language AMQP client library) prior to 0.16.0 contains an unsigned size_t underflow in amqp_handle_input() (librabbitmq/amqp_connection.c). A malicious AMQP server can send an undersized HEADER or METHOD frame during client login, causing the computed encoded.len to wrap to 0xffff...

CVE-2026-44235 rabbitmq-c: size_t underflow in AMQP frame length computation leads to out-of-bounds read

rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized HEADER or METHOD frame during client login and cause unsigned sizet underflow in amqphandleinput in librabbitmq/amqpconnection.c. The parser subtracts HEADERSIZE, fixed...

CVE-2026-44235 rabbitmq-c: size_t underflow in AMQP frame length computation leads to out-of-bounds read

rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to 0.16.0, a malicious AMQP server can send an undersized HEADER or METHOD frame during client login and cause unsigned sizet underflow in amqphandleinput in librabbitmq/amqpconnection.c. The parser subtracts HEADERSIZE, fixed...

Astra Linux – Vulnerability in imagemagick

The function WritePALMImage in /coders/palm.c uses sizet type conversions in several parts of the calculation. This could lead to values that are outside the range of the representable type unsigned long, resulting in undefined behavior when a malicious input file is processed by ImageMagick...

CVE-2026-89266

stbvorbis through 1.22 contains a heap buffer overflow in startdecoder where the codebook multiplicands allocation size is truncated from sizet to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes...

CVE-2026-80800

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: bound the connectsn TLV walk to the skb Commit 27256cdb290e "nfc: llcp: bound SNL TLV parsing to the skb and add length checks" fixed the unbounded TLV walk in nfcllcprecvsnl, and commit d8bd2dedbde5 "nfc: llcp: fix OO...

AZL-99681 CVE-2026-80798 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: reject PDUs shorter than the LLCP header Every LLCP PDU begins with a two-byte header DSAP/SSAP + PTYPE, but the receive path never checked that a frame is at least LLCPHEADERSIZE bytes before parsing it. nfcllcprxskb...

CVE-2026-80798

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: reject PDUs shorter than the LLCP header Every LLCP PDU begins with a two-byte header DSAP/SSAP + PTYPE, but the receive path never checked that a frame is at least LLCPHEADERSIZE bytes before parsing it. nfcllcprxskb...

EUVD-2026-71235

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: bound the connectsn TLV walk to the skb Commit 27256cdb290e "nfc: llcp: bound SNL TLV parsing to the skb and add length checks" fixed the unbounded TLV walk in nfcllcprecvsnl, and commit d8bd2dedbde5 "nfc: llcp: fix OO...

Linux Distros Unpatched Vulnerability : CVE-2026-80798

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfc: llcp: reject PDUs shorter than the LLCP header Every LLCP PDU begins with a two-byte header DSAP/SSAP + PTYPE, but the receive path never checked that a...

USN-8724-1: rabbitmq-c vulnerabilities

It was discovered that the rabbitmq-c command-line tools only accepted credentials on the command line, making them visible to other local users through the process list. An attacker could possibly use this to obtain sensitive credentials. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04...

openSUSE 16 Security Update : wicked (openSUSE-SU-2026:21669-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21669-1 advisory. Changes in wicked: - Fix two OOB reads in nicaptureinspectudpheader and improve: - Reject packets with iplen ihl to avoid a sizet underflow of t...

OPENSUSE-SU-2026:21669-1 Security update for wicked

This update for wicked fixes the following issues: Changes in wicked: - Fix two OOB reads in nicaptureinspectudpheader and improve: - Reject packets with iplen ihl to avoid a sizet underflow of the UDP length, which the checksum truncates to uint16t bsc1274627, CVE-2026-71401. - Set payloadlen to...

CVE-2026-74671

In the Linux kernel, the following vulnerability has been resolved: ima: fix out-of-bounds read in xattrverify The digest-length check in xattrverify mixes int and sizet: if xattrlen - sizeofxattrvalue-type - hashstart = iint-imahash-length sizeof yields sizet, so the usual arithmetic conversions...

CVE-2026-74671 ima: fix out-of-bounds read in xattr_verify()

In the Linux kernel, the following vulnerability has been resolved: ima: fix out-of-bounds read in xattrverify The digest-length check in xattrverify mixes int and sizet: if xattrlen - sizeofxattrvalue-type - hashstart = iint-imahash-length sizeof yields sizet, so the usual arithmetic conversions...