USN-3695-2: Linux kernel (HWE) vulnerabilities

USN-3695-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. Wen Xu discovered that the ext4 file system implementation in the Linux kernel did not...

Linux kernel memory corruption vulnerability (CNVD-2018-12154)

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A memory corruption vulnerability exists in the 'eaget' function of the fs/jfs/xattr.c file in versions of Linux kernel prior to 4.17.1, which can be exploited by an...

PT-2018-2582 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw in the Linux kernel's ext4 filesystem allows a local user to cause a use-after-free in the ext4 xattr set entry function. This can lead to a denial of service or unspecified oth...

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...

Linux ext4: out-of-bounds memcpy via non-inline system.data xattr(CVE-2018-11412)

ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode which normally contains a list of blocks instead,...

Linux Kernel ext4_read_inline_data() Memory Corruption

ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode which normally contains a list of blocks instead,...

Linux Kernel 4.16.11 - ext4_read_inline_data() Memory Corruption

Linux Kernel 4.16.11 - ext4readinlinedata Memory Corruption ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in...

Linux Kernel < 4.16.11 - 'ext4_read_inline_data()' Memory Corruption

ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode which normally contains a list of blocks instead,...

The vulnerability of the ext4_xattr_checkEntries function in the Linux operating system’s kernel allows a hacker to cause a service failure.

The vulnerability of the ext4xattrcheckEntries function fs/ext4/xattr.c in the Linux kernel is related to a pointer arithmetic error. Exploitation of this vulnerability could allow an attacker, operating remotely, to cause service failures by manipulating a specially crafted version of the ext4...

CVE-2018-1095

The ext4xattrcheckentries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service getacl NULL pointer dereference and system...

Null pointer dereference

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service ext4xattrinodehash NULL pointer dereference and system crash via a crafted ext4 image...

Null pointer dereference

The ext4xattrcheckentries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service getacl NULL pointer dereference and system...

CVE-2018-1095

CVE-2018-1095 concerns the Linux kernel up to 4.15.15, where ext4_xattr_check_entries in fs/ext4/xattr.c fails to validate xattr sizes, causing misinterpretation of a size as an error code. This can enable a crafted ext4 image to trigger a get_acl NULL pointer dereference and crash the system, i....

Linux kernel denial of service vulnerability (CNVD-2018-08146)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A denial of service vulnerability exists in 4.15.15 and earlier versions of the Linux kernel. The vulnerability arise...

CVE-2018-1095

The ext4xattrcheckentries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service getacl NULL pointer dereference and system...

UBUNTU-CVE-2018-1095

The ext4xattrcheckentries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service getacl NULL pointer dereference and system...

PT-2018-1240 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 4.15.15 Description: The issue is related to the ext4 xattr check entries function in the Linux kernel, which does not properly validate xattr sizes. This causes misinterpretation of a size as an error code,...

PT-2018-1241 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 4.15.15 Description: The issue is related to the ext4 fill super function in the Linux kernel, which does not always initialize the crc32c checksum driver. This allows attackers to cause a denial of service via a...

USN-3582-2 linux-lts-xenial, linux-aws vulnerabilities

USN-3582-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel...

USN-3582-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contained a race condition leading to uninitialized pointer usage. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. CVE-2017-17712 Laurent Guerby discovered that...