Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4094-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4094-1 advisory. It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could...

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...

USN-4094-1 linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. CVE-2018-13053 Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track...

Denial Of Service (DoS)

kernel is vulnerable to denial of servie DoS. The vulnerability exists through NULL pointer dereference in fs/xfs/libxfs/xfsinodebuf.c...

kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c

An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfsinodebuf.c in the Linux kernel. A denial of service due to the NULL pointer dereference can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork...

kernel: NULL pointer dereference in lookup_slow function

An issue was discovered in the XFS filesystem in fs/xfs/xfsicache.c in the Linux kernel. There is a NULL pointer dereference leading to a system panic in lookupslow on a NULL inode-iops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that...

kernel: NULL pointer dereference in xfs_da_shrink_inode function

An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfsattrleaf.c in the Linux kernel. A NULL pointer dereference may occur for a corrupted xfs image after xfsdashrinkinode is called with a NULL bp. This can lead to a system crash and a denial of service...

kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c

An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfsinodebuf.c in the Linux kernel. A denial of service due to the NULL pointer dereference can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork...

kernel: NULL pointer dereference in lookup_slow function

An issue was discovered in the XFS filesystem in fs/xfs/xfsicache.c in the Linux kernel. There is a NULL pointer dereference leading to a system panic in lookupslow on a NULL inode-iops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that...

kernel: NULL pointer dereference in xfs_da_shrink_inode function

An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfsattrleaf.c in the Linux kernel. A NULL pointer dereference may occur for a corrupted xfs image after xfsdashrinkinode is called with a NULL bp. This can lead to a system crash and a denial of service...

kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c

An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfsinodebuf.c in the Linux kernel. A denial of service due to the NULL pointer dereference can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork...

EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1535)

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 imspcugetcdcuniondesc function in drivers/input/misc/ims-pcu.c in the Linux kernel, through 4.13.11, allows local...

EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1511)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A null pointer dereference in dccpwritexmit function in net/dccp/output.c in the Linux kernel allows a local user to cause a deni...

OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0014)

The remote OracleVM system is missing necessary patches to address critical security updates : - ibcore: initialize shpd field when allocating 'struct ibpd' Mukesh Kacker Orabug: 29384815 - Revert 'x86/apic: Make archsetuphwirq NUMA node aware' Brian Maly Orabug: 29542185 - qlcnic: fix Tx...

Important kernel security update: New kernel 2.6.32-042stab137.1 for Virtuozzo Containers for Linux 4.7, Server Bare Metal 5.0

This update provides a new kernel 2.6.32-042stab137.1 for Virtuozzo Containers for Linux 4.7 and Server Bare Metal 5.0 based on the RHEL 6.10 kernel 2.6.32-754.12.1.el6. The new kernel introduces security and stability fixes. Vulnerability id: CVE-2018-13405 A vulnerability was found in the...

kernel: NULL pointer dereference in xfs_da_shrink_inode function

An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfsattrleaf.c in the Linux kernel. A NULL pointer dereference may occur for a corrupted xfs image after xfsdashrinkinode is called with a NULL bp. This can lead to a system crash and a denial of service...

kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members

A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create files with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group an...

EulerOS Virtualization 2.5.3 : kernel (EulerOS-SA-2019-1259)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - An issue was discovered in cancangwrcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allo...

EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1156)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An issue was discovered in the Linux kernel through 4.19. An information leak in cdromioctlselectdisc in drivers/cdrom/cdrom.c could be used by...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-1085)

The openSUSE Leap 42.3 kernel was updated to 4.4.176 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2019-9213: expanddownwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer...