Ubuntu 19.04 : Linux kernel vulnerabilities (USN-4069-1)

It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2019-11487 Jann Horn discovered that ...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4068-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4068-1 advisory. Adam Zabrocki discovered that the Intel i915 kernel mode graphics driver in the Linux kernel did not properly restrict mmap ranges in some situations. A...

EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2019-1702)

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - The kernel package contains the Linux kernel vmlinuz, the core of any Linux operating system. The kernel handles the...

EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1692)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. Whil...

EulerOS 2.0 SP2 : kernel (EulerOS-SA-2019-1639)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. Whil...

Updated kernel-tmb packages fix security vulnerability

This kernel-tmb update is based on the upstream 4.14.127 and fixes at least the following security issues: Jonathan Looney discovered that it is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map t...

PT-2019-4485 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel version 5.0.21 Description: The issue is related to a use-after-free in the ext4 put super function in fs/ext4/super.c, which is connected to the dump orphan list function in the same file. This can occur when mounting a crafted...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-1570) (SACK Panic) (SACK Slowness)

Example: The openSUSE Leap 42.3 kernel was updated to 4.4.180 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel pani...

Debian DLA-1823-1 : linux security update (SACK Panic) (SACK Slowness)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-3846, CVE-2019-10126 huangwen reported multiple buffer overflows in the Marvell wifi mwifiex driver, which a local user could use to cause...

[SECURITY] [DLA 1823-1] linux security update

Package : linux Version : 3.16.68-2 CVE ID : CVE-2019-3846 CVE-2019-5489 CVE-2019-10126 CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 CVE-2019-11810 CVE-2019-11833 CVE-2019-11884 Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of...

OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0024)

The remote OracleVM system is missing necessary patches to address critical security updates : - hugetlbfs: don't retry when pool page allocations start to fail Mike Kravetz Orabug: 29324267 - x86/speculation: RSB stuffing with retpoline on Skylake+ cpus William Roche Orabug: 29660924 -...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-1479)

The openSUSE Leap 15.1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-7191: In the tun subsystem devgetvalidname xwas not called before registernetdevice. This allowed local users to cause a denial of service NULL pointer dereferen...

Amazon Linux 2 : kernel (ALAS-2019-1214)

A flaw was found in the Linux kernel's freescale hypervisor manager implementation. A parameter passed via to an ioctl was incorrectly validated and used in size calculations for the page size calculation. An attacker can use this flaw to crash the system or corrupt memory or, possibly, create...

Updated kernel packages fix security vulnerabilities

This kernel update provides the upstream 4.14.121. It adds additional fixes to the kernel side mitigations for the Microarchitectural Data Sampling MDS, also called ZombieLoad attack vulnerabilities. It also fixes the following security issues: A flaw was found in the Linux kernel's freescale...

EulerOS 2.0 SP2 : kernel (EulerOS-SA-2019-1586)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make...

Denial Of Service (DoS)

Linux kernel is vulnerable to NULL pointer dereference vulnerability. This is because the ext4/mballoc.c:ext4processfreeddata function in Linux kernel mishandles the case of a root directory with a zero ilinkscount. A privileged attacker could cause a denial of service condition with a crafted ex...

Memory Corruption

Linux kernel is vulnerable to memory corruption vulnerability. The vulnerability exists in the function jbd2journaldirtymetadata of the component EXT4 File System. A local user could cause an out-of-bound write in the function jbd2journaldirtymetadata causing a denial of service condition by...

Denial Of Service (DoS)

Linux kernel is vulnerable to Null pointer deference vulnerability. The vulnerability exists in the ext4/xattr.c:ext4xattrinodehash function. An attacker could cause a denial of service condition with a crafted ext4 image which may result in an application crash...

Memory Corruption

Linux kernel is vulnerable to memory corruption attacks. This exits in the ext4 filesystem. A local user could cause a use-after-free in ext4xattrsetentry function and a denial of service or unspecified other impact may occur by renaming a file in a crafted ext4 filesystem image...

Memory Corruption

Linux kernel is vulnerable to memory corruption attacks. An attacker could exploit a flaw in the ext4 filesystem to cause an out-of-bounds write and a denial of service or unspecified other impact is possible by mounting and operating a crafted ext4 filesystem image...