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...

Important: kernel-livepatch-4.14.173-137.228

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

Important: kernel-livepatch-4.14.177-139.253

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

USN-4391-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle setxattr operations in some situations. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2019-19319 It was discovered that memory...

CVE-2016-7097

It was found that when file permissions were modified via chmod and the user modifying them was not in the owning group or capable of CAPFSETID, the setgid bit would be cleared. Setting a POSIX ACL via setxattr sets the file permissions as well as the new ACL, but doesn't clear the setgid bit in ...

CVE-2019-19319

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call, aka CID-345c0dbf3a30...

DEBIAN-CVE-2019-19319

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call, aka CID-345c0dbf3a30...

UBUNTU-CVE-2019-19319

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call, aka CID-345c0dbf3a30...

Design/Logic Flaw

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call, aka CID-345c0dbf3a30...

CVE-2019-19319

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call, aka CID-345c0dbf3a30...

Privilege Escalation

Linux kernel is vulnerable to privilege escalation attacks. The file system implementation in the Linux kernel preserves the setgid bit during a setxattr call. This could allow a local user to gain elevated privileges via certain setgid applications...

Red Hat glusterfs 'setxattr(2)' function denial of service vulnerability

Red Hat glusterfs is an open source distributed file system from Red Hat. The system is mainly for media streaming, data analysis and other data- and bandwidth-intensive tasks to create large-scale distributed storage solutions. A security vulnerability exists in Red Hat glusterfs. An attacker ca...

glusterfs: Repeat use of "GF_META_LOCK_KEY" xattr allows for memory exhaustion

A flaw was found in glusterfs server which allowed repeated usage of GFMETALOCKKEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node...

GlusterFS Denial of Service Vulnerability

Red Hat Gluster is an open source distributed file system from Red Hat Red Hat. The system is mainly for media streaming, data analysis and other data- and bandwidth-intensive tasks to create large-scale distributed storage solutions. A denial of service vulnerability exists in Red Hat Gluster...

CVE-2018-14659

The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GFXATTRIOSTATSDUMPKEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr2' to trigger a state dump and create...

Directory traversal

The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GFXATTRIOSTATSDUMPKEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr2' to trigger a state dump and create...

UBUNTU-CVE-2018-14659

The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GFXATTRIOSTATSDUMPKEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr2' to trigger a state dump and create...

CVE-2018-14659

The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GFXATTRIOSTATSDUMPKEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr2' to trigger a state dump and create...

CVE-2018-14659

The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GFXATTRIOSTATSDUMPKEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr2' to trigger a state dump and create...

DEBIAN-CVE-2018-12233

In the eaget function in fs/jfs/xattr.c in the Linux kernel through 4.17.1, a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to creat...