471 matches found
CVE-2018-6559
CVE-2018-6559 affects the Linux kernel overlayfs in Ubuntu 18.04/18.10. The vulnerability arises when mapping directory contents permissions inside nested user namespaces; a local attacker could exploit this to reveal names of files they would not normally access, bypassing some access controls. ...
CVE-2018-6559
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace...
CVE-2018-6559
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace...
UBUNTU-CVE-2018-6559
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace...
CVE-2018-6559
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace...
MGASA-2018-0177 Updated shadow-utils packages fix security vulnerability
Privilege escalation in newgidmap, which allowed an unprivileged user to be placed in a user namespace where setgroups2 is allowed CVE-2018-7169...
Updated shadow-utils packages fix security vulnerability
Privilege escalation in newgidmap, which allowed an unprivileged user to be placed in a user namespace where setgroups2 is allowed CVE-2018-7169...
SUSE-SU-2018:0662-1 Security update for shadow
This update for shadow fixes the following issues: - CVE-2018-7169: Fixed an privilege escalation in newgidmap, which allowed an unprivileged user to be placed in a user namespace where setgroups2 is allowed. bsc1081294...
CVE-2018-7169
An issue was discovered in newgidmap, in shadow-utils, that allows an unprivileged user to be placed in a user namespace where setgroups is permitted. An attacker could use this flaw to remove himself from a supplementary group, which may allow access to certain filesystem paths, if the...
Privilege escalation
An issue was discovered in shadow 4.5. newgidmap in shadow-utils is setuid and allows an unprivileged user to be placed in a user namespace where setgroups2 is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if...
CVE-2018-7169
An issue was discovered in shadow 4.5. newgidmap in shadow-utils is setuid and allows an unprivileged user to be placed in a user namespace where setgroups2 is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if...
UBUNTU-CVE-2018-7169
An issue was discovered in shadow 4.5. newgidmap in shadow-utils is setuid and allows an unprivileged user to be placed in a user namespace where setgroups2 is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if...
CVE-2018-7169
An issue was discovered in shadow 4.5. newgidmap in shadow-utils is setuid and allows an unprivileged user to be placed in a user namespace where setgroups2 is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if...
DEBIAN-CVE-2018-7169
An issue was discovered in shadow 4.5. newgidmap in shadow-utils is setuid and allows an unprivileged user to be placed in a user namespace where setgroups2 is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if...
CVE-2018-7169
An issue was discovered in shadow 4.5. newgidmap in shadow-utils is setuid and allows an unprivileged user to be placed in a user namespace where setgroups2 is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if...
OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0007) (Spectre)
The remote OracleVM system is missing necessary patches to address critical security updates : - x86/ibrs: Remove 'ibrsdump' and remove the prdebug Konrad Rzeszutek Wilk Orabug: 27350825 - kABI: Revert kABI: Make the bootcpudata look normal Konrad Rzeszutek Wilk CVE-2017-5715 - userns: prevent...
Exploiting the Linux kernel via packet sockets
Guest blog post, posted by Andrey Konovalov Introduction Lately I’ve been spending some time fuzzing network-related Linux kernel interfaces with syzkaller. Besides the recently discovered vulnerability in DCCP sockets, I also found another one, this time in packet sockets. This post describes ho...
Ubuntu PT Chown Privilege Escalation
Source: http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/ Introduction Problem description: With Ubuntu Wily and earlier, /usr/lib/ptchown was used to change ownership of slave pts devices in /dev/pts to the same uid holding the master file descriptor for the slave...
Ubuntu 14.04/15.10 - User Namespace Overlayfs Xattr Setgid Privilege Escalation Vulnerability
Exploit for linux platform in category local exploits Source: http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/ Introduction Problem description: Linux user namespace allows to mount file systems as normal user, including the overlayfs. As many of those...
Ubuntu 14.0415.10 - User Namespace Overlayfs Xattr SetGID Privilege Escalation
Ubuntu 14.0415.10 - User Namespace Overlayfs Xattr SetGID Privilege Escalation Source: http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/ Introduction Problem description: Linux user namespace allows to mount file systems as normal user, including the...