UBUNTU-CVE-2021-36087

The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmapmatchany called indirectly from cilcheckneverallow. This occurs because there is sometimes a lack of checks for invalid statements in an optional block...

SELinux 缓冲区错误漏洞

SELinux is a Linux subsystem from the National Security Agency that uses a secure architecture that allows administrators to better control who has access to the system. A security vulnerability exists in SELinux version 3.2, which stems from a heap-based buffer overflow in the CIL compiler in...

SELinux 资源管理错误漏洞

SELinux is a Linux subsystem from the National Security Agency that uses a secure architecture that allows administrators to better control who has access to the system. A security vulnerability exists in SELinux version 3.2, which stems from a use-after-free in the SELinux CIL compiler in the...

sudo: symbolic link attack in SELinux-enabled sudoedit

A race condition vulnerability was found in the temporary file handling of sudoedit's SELinux RBAC support. On systems where SELinux is enabled, this flaw allows a malicious user with sudoedit permissions to set the owner of an arbitrary file to the user ID of the target user, potentially leading...

The vulnerability of SELinux’s access control system in the Linux operating system allows a perpetrator to trigger a service failure.

The vulnerability of SELinux’ access control system in the Linux operating system is related to pointer arithmetic errors. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service failures...

kernel: SELinux netlink permission check bypass

A flaw was found in the Linux kernel’s SELinux LSM hook implementation, where it anticipated the skb would only contain a single Netlink message. The hook incorrectly validated the first Netlink message in the skb only, to allow or deny the rest of the messages within the skb with the granted...

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine it sets the security attribute to indicate that the category bitmap is present even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel resulting in a denial of service.

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The vulnerability of SELinux’s mandatory access control system, combined with Linux Security Modules (LSM) in operating system kernels, allows a perpetrator to gain unauthorized access to protected information.

The vulnerability of SELinux’s mandatory access control system, along with the Linux Security Modules LSM modules in the operating system kernel, is related to insufficient verification of data authenticity. Exploiting this vulnerability can allow an attacker to gain unauthorized access to...

Unspecified Vulnerability in Samsung Mobile Devices (CNVD-2020-32788)

Android is a Linux-based open source operating system jointly developed by Google Inc. and the Open Handheld Alliance OHA for short. Samsung mobile devices have a security vulnerability that can be exploited by attackers to turn off the SEAndroid protection mechanism...

Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option CIPSO protocol's category bitmap into the SELinux extensible bitmap via the' ebitmapnetlblimport' routine. While processing the CIPSO restricted...

DEBIAN-CVE-2020-10711

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option CIPSO protocol's category bitmap into the SELinux extensible bitmap via the' ebitmapnetlblimport' routine. While processing...

Important: kernel-livepatch-4.14.173-137.228

Issue Overview: A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option CIPSO protocol's category bitmap into the SELinux extensible bitmap via the' ebitmapnetlblimport' routine. While processing the CIP...

Important: kernel-livepatch-4.14.173-137.229

Issue Overview: A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option CIPSO protocol's category bitmap into the SELinux extensible bitmap via the' ebitmapnetlblimport' routine. While processing the CIP...

Description of the cumulative update for Office Communications Server 2007 R2, Core Components: November 2010

Describes the Office Communications Server 2007 R2, Core Components issue that is fixed in the cumulative update for Office Communications Server 2007 R2, Core Component that is dated November 2010.SummaryThis article describes the Microsoft Office Communications Server 2007 R2, Core Components...

Description of the update package for Communications Server 2007 R2, Web Components: March, 2011

Describes a bug that is resolved in the update package for Office Communications Server 2007 R2, Web Components that is dated March 2011.SummaryThis article describes the issue that is fixed in the update package for Microsoft Office Communications Server 2007 R2, Web Components that is dated...

Update to support RDP restricted administration for Windows 8 and Windows Server 2012

Update to support RDP restricted administration for Windows 8 and Windows Server 2012 About this update This Remote Desktop Protocol RDP update lets users use Remote Desktop Connection without sending their credentials to the remote computer. This helps prevent credential and credential hash thef...

runc: AppArmor/SELinux bypass with malicious image that specifies a volume at /proc

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfslinux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory...

The vulnerability of the fusermount module in file system drivers for UNIX-like operating systems allows a attacker to cause a service failure or other unpredictable behavior.

The vulnerability of the fusermount driver for file systems in UNIX-like operating systems relates to circumventing a limitation under SELinux’s mandatory access control policy. This allows users without root privileges to mount the FUSE file system with the “allowother” mount option, regardless ...

Linux: SELinux policy configuration

Security Enhanced Linux SELinux use the Linux Security Modules and provides Mandatory Access Control MAC. A MAC kernel protects the system from malicious apps. The SELinux policy is a set of rules that guide SELinux. The default targeted policy constraints daemons and system software only...

Linux: SELinux state

Security Enhanced Linux SELinux use the Linux Security Modules and provides Mandatory Access Control MAC. A MAC kernel protects the system from malicious apps. To ensure SELinux functionality is in effect all times it has to be enabled at boot time. SPDX-FileCopyrightText: 2019 Greenbone AG Some...