USN-3835-1: Linux kernel vulnerabilities

Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. CVE-2018-17972 Jann Horn discovered that the mremap system...

USN-3833-1 linux-aws vulnerabilities

Jann Horn discovered that the Linux kernel mishandles mapping UID or GID ranges inside nested user namespaces in some situations. A local attacker could use this to bypass access controls on resources outside the namespace. CVE-2018-18955 Philipp Wendler discovered that the overlayfs implementati...

USN-3832-1: Linux kernel (AWS) vulnerabilities

Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. CVE-2018-17972 Jann Horn discovered that the mremap system...

Linux - Nested User Namespace idmap Limit Local Privilege Escalation (Metasploit)

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Linux Nested User Namespace idmap Limit Local Privilege Escalation', 'Description' = %q This module exploits a vulnerability in Linux kernels...

Linux Nested User Namespace idmap Limit Local Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Linux Nested User Namespace idmap Limit Local Privilege Escalation', 'Description' = %q This module exploits a vulnerability in Linux kernels...

CVE-2018-18955

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

CVE-2018-18955

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

Input validation

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

DEBIAN-CVE-2018-18955

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

CVE-2018-18955

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

Linux - Broken uidgid Mapping for Nested User Namespaces

Linux - Broken uidgid Mapping for Nested User Namespaces commit 6397fac4915a "userns: bump idmap limits to 340" increases the number of possible uid/gid mappings that a namespace can have from 5 to 340. This is implemented by switching to a different data structure if the number of mappings excee...

UBUNTU-CVE-2018-18955

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

CVE-2018-18955: Incorrect Authorization

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

Linux - Broken uid/gid Mapping for Nested User Namespaces Exploit

Exploit for linux platform in category local exploits Linux - Broken uid/gid Mapping for Nested User Namespaces Exploit commit 6397fac4915a "userns: bump idmap limits to 340" increases the number of possible uid/gid mappings that a namespace can have from 5 to 340. This is implemented by switchin...

Linux Kernel UDP Fragmentation Offset (UFO) Privilege Escalation Exploit

This Metasploit module attempts to gain root privileges on Linux systems by abusing UDP Fragmentation Offload UFO. This exploit targets only systems using Ubuntu Trusty / Xenial kernels 4.4.0-21 'Linux Kernel UDP Fragmentation Offset UFO Privilege Escalation', 'Description' = %q This module...

glibc - realpath() Privilege Escalation Exploit

Exploit for linux platform in category local exploits This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule "glibc 'realpath' Privilege Escalation", 'Description' = %q This module attempts to gain roo...

Linux 4.4.0 < 4.4.0-53 - AF_PACKET chocobo_root Privilege Escalation Exploit

This Metasploit module exploits a race condition and use-after-free in the packetsetring function in net/packet/afpacket.c AFPACKET in the Linux kernel to execute code as root CVE-2016-8655. The bug was initially introduced in 2011 and patched in 2016 in version 4.4.0-53.74, potentially affecting...

AF_PACKET chocobo_root Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'AFPACKET chocoboroot Privilege Escalation', 'Description' = %q This module exploits a race condition and use-after-free in the packetsetring...

AF_PACKET packet_set_ring Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'AFPACKET packetsetring Privilege Escalation', 'Description' = %q This module exploits a heap-out-of-bounds write in the packetsetring function in...

Security update for docker, docker-runc, containerd, golang-github-docker-libnetwork (important)

This update for docker, docker-runc, containerd, golang-github-docker-libnetwork fixes several issues. These security issues were fixed: - CVE-2017-16539: The DefaultLinuxSpec function in oci/defaults.go docker did not block /proc/scsi pathnames, which allowed attackers to trigger data loss when...