139 matches found
Ubuntu Overlayfs Local Privilege Escalation
This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule '2021 Ubuntu Overlayfs LPE', 'Description' = %q This module exploits a vulnerability in Ubuntu's implementation of overlayfs. The vulnerability is...
Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
PoC exploit for CVE-2021-3493, a local privilege escalation vulnerability in Ubuntu OverlayFS. The target is the Linux kernel, specifically the overlayfs file system, which did not properly validate the application of file system capabilities with respect to user namespaces. A local attacker coul...
CVE-2021-3493
No description...
Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Vers...
Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
CVE-2021-3493 Ubuntu OverlayFS...
SUSE: Security Advisory (SUSE-SU-2014:0901-1)
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...
LSN-0076-1: Kernel Live Patch Security Notice
It was discovered that the overlayfs implementation in the Linux kernel did not properly validate the application of file system capabilities with respect to user namespaces. A local attacker could use this to gain elevated privileges.CVE-2021-3493 Piotr Krysiuk discovered that the BPF JIT compil...
Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Vers...
USN-4916-1: Linux kernel vulnerabilities | Cloud Foundry
Severity High Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 14.04 Canonical Ubuntu 16.04 Description It was discovered that the overlayfs implementation in the Linux kernel did not properly validate the application of file system capabilities with respect to user namespaces. A local...
Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
It is an exploit module for CVE-2021-3493, a local privilege escalation vulnerability in Ubuntu OverlayFS. The target is the Linux kernel, specifically the overlayfs file system, which did not properly validate the application of file system capabilities with respect to user namespaces. A local...
USN-4916-2: Linux kernel regression
USN-4916-1 fixed vulnerabilities in the Linux kernel. Unfortunately, the fix for CVE-2021-3493 introduced a memory leak in some situations. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that the overlayfs implementation in the Linu...
USN-4916-2 linux, linux-aws, linux-gke-5.3, linux-hwe, linux-kvm, linux-lts-xenial, linux-oem-5.6, linux-raspi2, linux-raspi2-5.3, linux-snapdragon regression
USN-4916-1 fixed vulnerabilities in the Linux kernel. Unfortunately, the fix for CVE-2021-3493 introduced a memory leak in some situations. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that the overlayfs implementation in the Linu...
Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Vers...
Ubuntu: Security Advisory (USN-4916-2)
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...
CVE-2021-3493
creationtimestamp| type| source ---|---|--- 2021-04-21 10:26:15+00:00| published-proof-of-concept| https://t.me/pwnwikizhchannel/222 2021-04-26 11:02:21+00:00| seen| https://t.me/CyberSecurityTechnologies/3219 2021-05-08 12:54:09+00:00| published-proof-of-concept|...
ubuntu特权提升漏洞（CVE-2021-3493）
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Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux
CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Vers...
CVE-2021-3493
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow...
CVE-2021-3493
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow...
CVE-2021-3493
Summary: CVE-2021-3493 is a Linux kernel overlayfs privilege-escalation issue where overlayfs does not properly validate file capabilities against user namespaces, enabling local privilege escalation on systems using unprivileged user namespaces with Ubuntu overlay patches. The vulnerability is r...