userland-exec

Userland Exec Userland exec 在当前地址空间内用一个新的进程映像替换现有的进程映像。它模拟系统调用 execve 的行为，但描述进程映像的进程结构保持不变。换句话说，系统工具报告的进程名称将保留旧的进程名称。 该技术可用于在获得任意代码执行后实现隐蔽性。它还可用于执行存储在 noexec 分区中的二进制文件。 第一个 userland exec 由 grugq 创建。本仓库深受 Rapid7 Mettle library 的启发，其中包含对该技术的全面 博客描述。 最初，本仓库的大部分代码模仿了 Mettle 库，但后来已扩展出额外的复杂性以绕过 SELinux...

OPENSUSE-SU-2026:21301-1 Security update for dash

This update for dash fixes the following issues - CVE-2026-31323: Fix CVE-2026-31323 INTMAXMIN / -1 overflow bsc1269494. - executes code even when noexec "-n" is specified bsc1178978...

CVE-2026-53614

Local Privilege Escalation via LIBMOUNTFORCEMOUNT2 Environment Variable - nosuid/noexec Bypass in SUID mount8...

PT-2026-53079

Name of the Vulnerable Software and Affected Versions openSUSE Tumbleweed versions prior to 2.42.2-1.1 Description A local privilege escalation exists in the SUID mount8 utility. An attacker can bypass nosuid and noexec restrictions by manipulating the LIBMOUNT FORCE MOUNT2 environment variable...

Debian: Security Advisory (DLA-707-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE CVE-2016-7032

sudonoexec.so in Sudo before 1.8.15 on Linux might allow local users to bypass intended noexec command restrictions via an application that calls the 1 system or 2 popen function...

SUSE CVE-2016-7076

sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to...

SUSE CVE-2020-16019

Inappropriate implementation in filesystem in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to bypass noexec restrictions via a malicious file...

SUSE: Security Advisory (SUSE-SU-2016:2891-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

DEBIAN-CVE-2020-16035

Insufficient data validation in cros-disks in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to bypass noexec restrictions via a malicious file...

UBUNTU-CVE-2020-16019

Inappropriate implementation in filesystem in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to bypass noexec restrictions via a malicious file...

UBUNTU-CVE-2020-16035

Insufficient data validation in cros-disks in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to bypass noexec restrictions via a malicious file...

USN-3968-3 sudo vulnerabilities

USN-3968-1 fixed several vulnerabilities in Sudo. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Florian Weimer discovered that Sudo incorrectly handled the noexec restriction when used with certain applications. A local attacker could possibly use...

DEBIAN-CVE-2016-7076

sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to...

UBUNTU-CVE-2016-7076

sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to...

DEBIAN-CVE-2016-7032

sudonoexec.so in Sudo before 1.8.15 on Linux might allow local users to bypass intended noexec command restrictions via an application that calls the 1 system or 2 popen function...

sudo: noexec bypass via system() and popen()

It was discovered that the sudo noexec restriction could have been bypassed if application run via sudo executed system or popen C library functions with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could use this flaw to execute...

sudo: noexec bypass via wordexp()

It was discovered that the sudo noexec restriction could have been bypassed if application run via sudo executed wordexp C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to execute...

openSUSE Security Update : sudo (openSUSE-2016-1381)

This update for sudo fixes the following issues : - fix two security vulnerabilities that allowed users to bypass sudo's NOEXEC functionality : - noexec bypass via system and popen CVE-2016-7032, bsc1007766 - noexec bypass via wordexp CVE-2016-7076, bsc1007501 Sudo was updated to the package from...

SUSE SLED12 / SLES12 Security Update : sudo (SUSE-SU-2016:2904-1)

This update for sudo fixes the following security issues : - Fix two security vulnerabilities that allowed users to bypass sudo's NOEXEC functionality : - noexec bypass via system and popen CVE-2016-7032, bsc1007766 - noexec bypass via wordexp CVE-2016-7076, bsc1007501 - Fix unsafe handling of TZ...