kernel: vfs: missing detection of hardlinks in vfs_rename() on overlayfs

A flaw was found that the vfsrename function did not detect hard links on overlayfs. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to crash the system...

kernel: overlayfs file truncation without permissions

An issue was discovered in the Linux kernel where an incorrect access check in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem...

kernel: vfs: missing detection of hardlinks in vfs_rename() on overlayfs

A flaw was found that the vfsrename function did not detect hard links on overlayfs. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to crash the system...

DEBIAN-CVE-2015-8953

fs/overlayfs/copyup.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service dentry reference leak via filesystem operations on a large file in a lower overlayfs layer...

CVE-2015-8953

fs/overlayfs/copyup.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service dentry reference leak via filesystem operations on a large file in a lower overlayfs layer...

kernel: overlayfs: missing upper dentry verification before unlink and rename

It was found that the unlink and rename functionality in overlayfs did not verify the upper dentry for staleness. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to panic or crash the system...

kernel: vfs: missing detection of hardlinks in vfs_rename() on overlayfs

A flaw was found that the vfsrename function did not detect hard links on overlayfs. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to crash the system...

kernel: overlayfs: missing upper dentry verification before unlink and rename

It was found that the unlink and rename functionality in overlayfs did not verify the upper dentry for staleness. A local, unprivileged user could use the rename syscall on overlayfs on top of xfs to panic or crash the system...

UBUNTU-CVE-2016-6197

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service system crash via a rename system call that...

kernel: Permission bypass on overlayfs during copy_up

The ovlsetattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application...

UBUNTU-CVE-2016-1575

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory...

USN-2858-2 linux-lts-wily vulnerability

Nathan Williams discovered that overlayfs in the Linux kernel incorrectly handled setattr operations. A local unprivileged attacker could use this to create files with administrative permission attributes and execute arbitrary code with elevated privileges...

DEBIAN-CVE-2015-8660

The ovlsetattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application...

UBUNTU-CVE-2015-8660

The ovlsetattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application...

Linux kernel 'fs/overlayfs/inode.c' local boost vulnerability

Linux kernel is an open source operating system. Linux kernel 'fs/overlayfs/inode.c' has a security vulnerability that allows local attackers to exploit the vulnerability to gain root privileges...