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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-2018-20976

kernel: use-after-free in fs/xfs/xfs_super.c

An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Mrg Rhel Aus and 3 more
CVE-2018-20969

patch: do_ed_script in pch.c does not block strings beginning with a ! character

do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: this is the same commit as for CVE-2019-13638, but the ! syntax is specific to ed, and is unrelated to a shell metacharacter.

CVSS 3.0 · 7.8 High EPSS 2.7% KEV · Not listed
Vendors
Gnu Redhat
Products
Patch Enterprise Linux Rhel Aus and 3 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-2018-1122

procps: Local privilege escalation in top

procps-ng before version 3.3.15 is vulnerable to a local privilege escalation in top. If a user runs top with HOME unset in an attacker-controlled directory, the attacker could achieve privilege escalation by exploiting one of several vulnerabilities in the config_file() function.

CVSS 3.0 · 7.3 High EPSS 1.2% KEV · Not listed
Vendors
Canonical Debian Procps-ng Project and 1 more
Products
Ubuntu Linux Debian Linux Procps-ng and 6 more
CVE-2018-1111

dhcp: Command injection vulnerability in the DHCP client NetworkManager integration script

DHCP packages in Red Hat Enterprise Linux 6 and 7, Fedora 28, and earlier are vulnerable to a command injection flaw in the NetworkManager integration script included in the DHCP client. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol.

CVSS 3.0 · 7.5 High EPSS 97.9% KEV · Not listed
Vendors
Fedoraproject Redhat
Products
Fedora Enterprise Linux Enterprise Linux Desktop and 8 more
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-2018-19788

polkit: Improper handling of user with uid > INT_MAX leading to authentication bypass

A flaw was found in PolicyKit (aka polkit) 0.115 that allows a user with a uid greater than INT_MAX to successfully execute any systemctl command.

CVSS 3.0 · 8.8 High EPSS 11.6% KEV · Not listed
Vendors
Canonical Debian Polkit Project and 1 more
Products
Ubuntu Linux Debian Linux Polkit and 2 more
CVE-2018-19115

keepalived: Heap-based buffer overflow when parsing HTTP status codes allows for denial of service or possibly arbitrary code execution

keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.

CVSS 3.0 · 9.8 Critical EPSS 3.7% KEV · Not listed
Vendors
Debian Keepalived Redhat
Products
Debian Linux Keepalived Enterprise Linux and 6 more
CVE-2018-18751

gettext: double free in default_add_message in read-catalog.c

An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free in po_gram_parse in po-gram-gen.y, as demonstrated by lt-msgfmt.

CVSS 3.0 · 9.8 Critical EPSS 4.3% KEV · Not listed
Vendors
Canonical Gnu Redhat
Products
Ubuntu Linux Gettext Enterprise Linux and 1 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-2018-18397

kernel: userfaultfd bypasses tmpfs file permissions

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Linux and 9 more
CVE-2018-18311

perl: Integer overflow leading to buffer overflow in Perl_my_setenv()

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

CVSS 3.0 · 9.8 Critical EPSS 11.7% KEV · Not listed
Vendors
Apple Canonical Debian and 5 more
Products
Mac Os X Ubuntu Linux Debian Linux and 20 more
CVE-2018-18281

kernel: TLB flush happens too late on mremap

Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.

CVSS 3.0 · 7.8 High EPSS 1.1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 7 more
CVE-2018-16884

kernel: nfs: use-after-free in svc_process_common()

A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

CVSS 3.1 · 8.0 High EPSS 1.5% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 5 more
CVE-2018-16871

kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence

A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to 4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.

CVSS 3.1 · 7.5 High EPSS 2.7% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Cloud Backup H300e and 28 more