Moderate: Red Hat Security Advisory: wget security, bug fix, and enhancement update

An update for wget is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

CVE-2021-3156

CVE-2021-3156 Nota: Estas instrucciones son mías y notas de un stream que hice. Si algo está mal, házmelo saber. ¡Confía primero en las fuentes oficiales! Hola a todos, Hace un par de días, se descubrió un grave desbordamiento de búfer basado en montón en sudo que puede ser explotado por cualquie...

Moderate: Red Hat Security Advisory: wget security, bug fix, and enhancement update

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

CVE-2026-84269

A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operati...

DEBIAN-CVE-2026-84269

A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operati...

CVE-2026-84268

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause readreply to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing...

wget: GNU Wget: Heap buffer overflow via server-supplied filename leads to memory corruption

A flaw was found in GNU Wget. A remote attacker can exploit a heap buffer overflow vulnerability in the convertfname function. This occurs when processing a server-supplied filename that requires character set conversion, leading to memory corruption due to incorrect buffer reallocation. This can...

wget: GNU Wget: Arbitrary code execution or denial of service via crafted HTML attribute

A flaw was found in GNU Wget. A remote attacker can exploit a heap buffer overflow vulnerability in the htmlquotestring function by providing a specially crafted HTML attribute. This can lead to memory corruption and potentially result in arbitrary code execution or a denial of service...

Moderate: Red Hat Security Advisory: wget security, bug fix, and enhancement update

An update for wget is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

CVE-2026-84269 Gvfs: afp: heap-based buffer overflow in dsi read path

A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operati...

EUVD-2026-69297

A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operati...

CVE-2026-84269

A heap-based buffer overflow was identified in the AFP backend of gvfs . When mounting a share, a malicious AFP server can supply a length in the DSI read path that exceeds the size the client requested. Because the function does not validate the server-provided length against the pre-sized reply...

Important: Red Hat Security Advisory: libXfont2 security update

An update for libXfont2 is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. 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...

libxfonts2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client

A flaw was found in the libXfont2 font-server client. This heap buffer overflow vulnerability allows a malicious font server to send specially crafted glyph data. The fsreadglyphs function fails to properly validate the total size of the incoming data, leading to an overwrite of memory beyond the...

CVE-2026-84269

A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operati...

CVE-2026-84268 Gvfs: sftp: heap-based buffer overflow in read_reply()

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause readreply to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing...

CVE-2026-84268 Gvfs: sftp: heap-based buffer overflow in read_reply()

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause readreply to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing...

CVE-2026-84268

CVE-2026-84268 is a heap-based buffer overflow in the gvfs SFTP backend (gvfsd-sftp process). When mounting a share and reading a file, the read_reply() function fails to validate the server-provided length against the allocated buffer size, allowing a malicious SFTP server to write past intended...

CVE-2022-24903-Heap-based-buffer-overflow-Hand-On-Lab

CVE-2022-24903 动手实验 作者： Andrew Beshay Mousa 一个演示 rsyslog 堆缓冲区溢出漏洞的实操实验。 一个实用的实验室环境，用于通过 TCP syslog 接收中的八位字节计数帧（octet-counted framing）复现并理解 rsyslog 堆缓冲区溢出 漏洞（CVE-2022-24903）。 目录 概述 实验架构 前提条件 漏洞详情 实验环境搭建 目标机器（Ubuntu） 攻击者机器（Kali） 漏洞利用 验证 故障排除 缓解措施 参考资料 概述 CVE-2022-24903 是 rsyslog 的 TCP syslog...

CVE-2021-3156

漏洞利用链深入解析：CVE-2021-3156 Baron Samedit 作者： IJ Baig 日期： 2026年7月7日 1. CVE 编号、受影响版本与构建确认 CVE 编号： CVE-2021-3156 漏洞类型： 基于堆的缓冲区溢出 受影响版本范围： 旧版 Sudo 版本 1.8.2 至 1.8.31p2，以及稳定版 1.9.0 至 1.9.5p1。 构建的目标版本： Sudo 1.9.5p1 1.1 环境搭建 为安全分析此漏洞，易受攻击的 Sudo 版本已在隔离的非生产环境中编译。 1.2 从源码编译 Sudo 1.9.5p1 的源码已下载并在本地使用标准 make...