CVE-2023-21716

CVE-2023-21716 Microsoft Word RTF 字体表堆损坏 Microsoft Office wwlib 中的一个漏洞允许攻击者在受害者打开恶意 RTF 文档时，以受害者的权限实现远程代码执行。攻击者可以通过电子邮件附件（或其他方式）传递此文件。 背景 Microsoft Word 是 Microsoft Office 中包含的文字处理应用程序。默认安装下，Microsoft Word 处理富文本格式（RTF）文档。此类文档主要由基于 7 位 ASCII 的关键字组成，这些关键字共同封装了各种丰富的内容。 漏洞详情 Microsoft Word 中的 RTF...

CVE-2017-16995

CVE-2017-16995 CVE 编号： CVE-2017-16995 发布日期： 2017-12-27T17:08:17.670 基础得分（CVSS 3.0/3.1）： 7.8 描述： Linux 内核至 4.4 版本中的 kernel/bpf/verifier.c 文件的 checkaluop 函数，允许本地用户通过利用不正确的符号扩展来造成拒绝服务（内存损坏），或可能产生其他未指明的影响。...

Ubuntu-0day

Ubuntu16.04-0day 漏洞范围： all 4.4 ubuntu aws instances are vulnerable Jann Horn发现在某些情况下，Linux内核中的Berkeley Packet Filter（BPF）不正确地执行了符号扩展checkaluop。本地攻击者可以使用它在系统上进行提权,获取root权限。 root@kitploit: bpf: fix incorrect sign extension in checkaluop Distinguish between BPFALU64|BPFMOV|BPFK load 32-bit immediate...

Linux Distros Unpatched Vulnerability : CVE-2026-90195

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - riscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args On RV64, the ABI requires sign- extension for signed 1-byte and 2-byte kfunc args...

CVE-2026-93127

In the Linux kernel, the following vulnerability has been resolved: bpf: Drop scalar id on sign-extending narrowing stack fills When a spilled scalar is filled back with a sign-extending narrowing load BPFMEMSX, checkstackreadfixedoff copies the spilled register including its scalar id, but...

DEBIAN-CVE-2026-90195

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args On RV64, the ABI requires sign-extension for signed 1-byte and 2-byte kfunc args. However, the RV64 JIT currently does not perform sign-extension for such...

CVE-2026-90195

This Linux kernel vulnerability affects the RISC-V (RV64) BPF JIT compiler . The RV64 ABI requires sign-extension for signed 1-byte and 2-byte kfunc arguments , but the JIT failed to perform this extension. The bug was previously masked by a state-pruning behavior in commit 7ce090afbf72, which in...

CVE-2026-90195 riscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args On RV64, the ABI requires sign-extension for signed 1-byte and 2-byte kfunc args. However, the RV64 JIT currently does not perform sign-extension for such...

EUVD-2026-81788

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix missing sign-ext for signed 1-byte and 2-byte kfunc args On RV64, the ABI requires sign-extension for signed 1-byte and 2-byte kfunc args. However, the RV64 JIT currently does not perform sign-extension for such...

DEBIAN-CVE-2026-89914

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not...

CVE-2026-89914

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not...

CVE-2017-16995-Linux-Kernel---BPF-Sign-Extension-Local-Privilege-Escalation-

此存储库没有 README。...

CVE-2026-89914 KVM: arm64: Sign-extend VA for range-based TLBI invalidation

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not...

EUVD-2026-80514

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not...

Linux Distros Unpatched Vulnerability : CVE-2026-89914

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi helper was moved to be used for S1 TLBIs, the required sign extension was...

CVE-2026-56123

A flaw was found in socat. A remote attacker, acting as a malicious SOCKS5 proxy server, can exploit a heap-based buffer overflow. This vulnerability, caused by a sign-extension flaw in the DOMAINNAME reply parser, allows the attacker to write arbitrary data to memory. This could lead to arbitrar...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Squashfs: fixed the handling and sanity checking of the xattrids count A Sysbot 1 that corrupted the filesystem exposed two flaws in the handling and sanity checking of the xattrids count in the filesystem. Both of these flaws...

CVE-2026-89579

In the Linux kernel, the following vulnerability has been resolved: bpf: Harden bloom filter sizing and indexing on 32-bit kernels bloommapalloc has two 32-bit-specific problems when the computed bitmap reaches the U32MAX fallback case. First, BITSTOBYTESU32MAX is evaluated with 32-bit arithmetic...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053200)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053200 advisory. In the Linux kernel, the following vulnerability has been resolved: iouring: fix overflows checks in provide buffers Colin reported before possible overflow and sign...

CVE-2026-68295

A flaw was found in the Linux kernel. The LoongArch Just-In-Time JIT compiler for the Berkeley Packet Filter BPF subsystem incorrectly sign-extends the results of signed 32-bit division and modulo operations. This behavior causes the upper bits of BPF registers to be set, which differs from the...