AZL-6522 CVE-2020-16120 affecting package kernel for versions less than 5.10.78.1-1

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a...

CVE-2020-16120

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a...

Design/Logic Flaw

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a...

CVE-2020-16120 Unprivileged overlay + shiftfs read access

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a...

CVE-2020-16120

The CVE-2020-16120 issue concerns Overlayfs in the Linux kernel where permission checks during copy-up were inadequate when used inside a user namespace. It was introduced in kernel 4.19 (ovl: stack file ops) and fixed in kernel 5.8 by patches that verify permissions in ovl_path_open(), switch to...

Privilege Escalation

docker is vulnerable to privilege escalation. The --userns-remap option allows the root user in the remapped namespace, who has access to the host filesystem, to modify files under /var/lib/docker/ and write files with extended privileges...

Vulnerabilities fixed in Docker

Vulnerabilities have been fixed in Docker. A local malicious person can, by exploiting the vulnerability with attribute CVE-2021-21284, gain root privileges from the container on the vulnerable system. To exploit this vulnerability, the Docker daemon must be configured with the --userns-remap...

[ASA-202102-12] docker: multiple issues

Arch Linux Security Advisory ASA-202102-12 ========================================== Severity: Medium Date : 2021-02-06 CVE-ID : CVE-2021-21284 CVE-2021-21285 Package : docker Type : multiple issues Remote : No Link : https://security.archlinux.org/AVG-1528 Summary ======= The package docker...

EulerOS 2.0 SP9 : kata-containers (EulerOS-SA-2021-1245)

According to the version of the kata-containers package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - containerd is an industry-standard container runtime and is available as a daemon for Linux and Windows. In containerd before versions 1.3....

OESA-2021-1011 golang security update

The Go Programming Language.\r\n\r\n Security Fixes:\r\n\r\n The encoding/xml package in Go all versions does not correctly preserve the semantics of attribute namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during...

DEBIAN-CVE-2021-21284

In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can...

UBUNTU-CVE-2021-21284

In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can...

CVE-2021-21284

CVE-2021-21284 affects Docker’s userns-remap feature. The root user in the remapped namespace can gain privilege escalation to the host’s real root if it has host filesystem access, by modifying files under /var/lib/docker/. Patches were included in Docker releases 20.10.3 and 19.03.15 to prevent...

Docker 路径遍历漏洞

Docker is an open source application container engine from the American company Docker. It supports creating a container lightweight virtual machine and deploying and running applications on Linux systems, as well as automating the installation, deployment and upgrade of applications through...

CVE-2020-5801

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affect...

Linux TIOCSPGRP Broken Locking Exploit

Linux: Broken locking in TIOCSPGRP leads to corrupted tty-pgrp refcount tiocspgrp, the handler for the TIOCSPGRP ioctl, has the following signature: static int tiocspgrpstruct ttystruct tty, struct ttystruct realtty, pidt user p It receives two ttystruct pointers because, for PTY pairs, userspace...

MediaWiki cross-site scripting vulnerability (CNVD-2020-74052)

MediaWiki is a set of free and freely available web-based Wiki engines from the MediaWiki Wikimedia Foundation in the United States. It can be used to deploy in-house knowledge management and content management systems. A cross-site scripting vulnerability exists in MediaWiki before version 1.35....

PT-2020-17372 · Mediawiki +1 · Mediawiki +2

Name of the Vulnerable Software and Affected Versions: MediaWiki versions through 1.35.1 Widgets extension for MediaWiki versions through 1.35.1 Description: An issue was discovered in the Widgets extension for MediaWiki, where any user with the ability to edit pages within the Widgets namespace...

Cross-Site Scripting

Overview Cure53 DOMPurify before 2.0.17 allows mutation XSS. This occurs because a serialize-parse roundtrip does not necessarily return the original DOM tree, and a namespace can change from HTML to MathML, as demonstrated by nesting of FORM elements. Recommendation Upgrade to version 2.0.17 or...

GHSA-63Q7-H895-M982 Cross-site Scripting in dompurify

Cure53 DOMPurify before 2.0.17 allows mutation XSS. This occurs because a serialize-parse roundtrip does not necessarily return the original DOM tree, and a namespace can change from HTML to MathML, as demonstrated by nesting of FORM elements...