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CVE-2018-5750

kernel: Kernel address information leak in drivers/acpi/sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass

The acpi_smbus_hc_add function in drivers/acpi/sbshc.c in the Linux kernel through 4.14.15 allows local users to obtain sensitive address information by reading dmesg data from an SBS HC printk call.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 9 more
CVE-2018-5391

The Linux kernel, versions 3.9+, IP implementation is vulnerable to denial of service conditions with low rates of specially modified packets

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

CVSS 3.1 · 7.5 High EPSS 32.1% KEV · Not listed
Vendors
Canonical Debian F5 and 4 more
Products
Ubuntu Linux Debian Linux Big-ip Access Policy Manager and 77 more
CVE-2018-5390

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

CVSS 3.1 · 7.5 High EPSS 71.8% KEV · Not listed
Vendors
A10networks Canonical Cisco and 5 more
Products
Advanced Core Operating System Ubuntu Linux Collaboration Meeting Rooms and 44 more
CVE-2018-5344

kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial-of-service

In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo_release serialization, which allows attackers to cause a denial of service (__lock_acquire use-after-free) or possibly have unspecified other impact.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Linux and 5 more
CVE-2018-3693

Kernel: speculative bounds check bypass store

Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a speculative buffer overflow and side-channel analysis.

CVSS 3.1 · 5.6 Medium EPSS 8.6% KEV · Not listed
Vendors
Arm Fujitsu Intel and 4 more
Products
Cortex-a Cortex-r M12-1 and 227 more
CVE-2018-3665

Kernel: FPU state information leakage via lazy FPU restore

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.

CVSS 3.1 · 5.6 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Citrix Debian and 3 more
Products
Ubuntu Linux Xenserver Debian Linux and 14 more
CVE-2018-20856

kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c

An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Mrg and 5 more
CVE-2018-20836

kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c leads to use-after-free

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

CVSS 3.1 · 8.1 High EPSS 5.1% KEV · Not listed
Vendors
Canonical Debian F5 and 4 more
Products
Ubuntu Linux Debian Linux Traffix Signaling Delivery Controller and 13 more
CVE-2018-20169

kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS

An issue was discovered in the Linux kernel before 4.19.9. The USB subsystem mishandles size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 7 more
CVE-2018-1130

kernel: a null pointer dereference in net/dccp/output.c:dccp_write_xmit() leads to a system crash

Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit() function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of certain crafted system calls.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 5 more
CVE-2018-1120

kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service

A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).

CVSS 3.0 · 2.8 Low EPSS 7.1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 10 more
CVE-2018-1118

kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg()

Linux kernel vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.

CVSS 3.0 · 2.3 Low EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 6 more
CVE-2018-1094

kernel: NULL pointer dereference in ext4/xattr.c:ext4_xattr_inode_hash() causes crash with crafted ext4 image

The ext4_fill_super 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 (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image.

CVSS 3.1 · 5.5 Medium EPSS 2.1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Linux and 4 more
CVE-2018-1092

kernel: NULL pointer dereference in ext4/mballoc.c:ext4_process_freed_data() when mounting crafted ext4 image

The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.

CVSS 3.0 · 5.5 Medium EPSS 1.9% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Extras Rt
CVE-2018-1087

Kernel: KVM: error in exception handling leads to wrong debug stack value

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.

CVSS 3.0 · 8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 13 more
CVE-2018-1068

kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c

A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 14 more
CVE-2018-19985

kernel: oob memory read in hso_probe in drivers/net/usb/hso.c

The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and uses it to index a small array, resulting in an object out-of-bounds (OOB) read that potentially allows arbitrary read in the kernel address space.

CVSS 3.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 1 more
Products
Debian Linux Linux Kernel Active Iq Performance Analytics Services and 3 more
CVE-2018-18690

kernel: filesystem corruption due to an unchecked error condition during an xfs attribute change

In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 2 more
CVE-2018-18559

kernel: Use-after-free due to race condition in AF_PACKET implementation

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.

CVSS 3.1 · 8.1 High EPSS 2.6% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Enterprise Linux Desktop and 13 more
CVE-2018-18445

kernel: Faulty computation of numberic bounds in the BPF verifier

In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Linux and 7 more