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CVE-2018-13093

kernel: NULL pointer dereference in lookup_slow function

An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.

CVSS 3.0 · 5.5 Medium EPSS 1.7% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Extras Rt
CVE-2018-13053

kernel: Integer overflow in the alarm_timer_nsleep function

The alarm_timer_nsleep function in kernel/time/alarmtimer.c in the Linux kernel through 4.17.3 has an integer overflow via a large relative timeout because ktime_add_safe is not used.

CVSS 3.0 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 2 more
CVE-2018-12931

kernel: stack-based out-of-bounds write in ntfs_attr_find in the ntfs.ko

ntfs_attr_find in the ntfs.ko filesystem driver in the Linux kernel 4.15.0 allows attackers to trigger a stack-based out-of-bounds write and cause a denial of service (kernel oops or panic) or possibly have unspecified other impact via a crafted ntfs filesystem.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Mrg
CVE-2018-12930

kernel: stack-based out-of-bounds write in ntfs_end_buffer_async_read in the ntfs.ko

ntfs_end_buffer_async_read in the ntfs.ko filesystem driver in the Linux kernel 4.15.0 allows attackers to trigger a stack-based out-of-bounds write and cause a denial of service (kernel oops or panic) or possibly have unspecified other impact via a crafted ntfs filesystem.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Mrg
CVE-2018-12929

kernel: use-after-free in ntfs_read_locked_inode in the ntfs.ko

ntfs_read_locked_inode in the ntfs.ko filesystem driver in the Linux kernel 4.15.0 allows attackers to trigger a use-after-free read and possibly cause a denial of service (kernel oops or panic) via a crafted ntfs filesystem.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Mrg
CVE-2018-12928

kernel: NULL pointer dereference in hfs_ext_read_extent in hfs.ko

In the Linux kernel 4.15.0, a NULL pointer dereference was discovered in hfs_ext_read_extent in hfs.ko. This can occur during a mount of a crafted hfs filesystem.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Linux
Products
Ubuntu Linux Linux Kernel
CVE-2018-12904

kernel: kvm: nVMX: missing privilege check allows privilege escalation in nested virtualization

In arch/x86/kvm/vmx.c in the Linux kernel before 4.17.2, when nested virtualization is used, local attackers could cause L1 KVM guests to VMEXIT, potentially allowing privilege escalations and denial of service attacks due to lack of checking of CPL.

CVSS 3.0 · 4.9 Medium EPSS 1.1% KEV · Not listed
Vendors
Canonical Linux
Products
Ubuntu Linux Linux Kernel
CVE-2018-12896

kernel: Integer overflow in kernel/time/posix-timers.c

An issue was discovered in the Linux kernel through 4.17.3. An Integer Overflow in kernel/time/posix-timers.c in the POSIX timer code is caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INT_MAX, but the accounting is int based. This basically makes the accounting values, which are visible to user space via timer_getoverrun(2) and siginfo::si_overrun, random. For example, a local user can cause a denial of service (signed integer overflow) via crafted mmap, futex, timer_create, and timer_settime system calls.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux
Products
Ubuntu Linux Debian Linux Linux Kernel
CVE-2018-12828

flash-plugin: Privilege Escalation vulnerability (APSB18-25)

Adobe Flash Player 30.0.0.134 and earlier have a "use of a component with a known vulnerability" vulnerability. Successful exploitation could lead to privilege escalation.

CVSS 3.0 · 9.8 Critical EPSS 7.0% KEV · Not listed
Vendors
Adobe Apple Google and 3 more
Products
Flash Player Mac Os X Chrome Os and 8 more
CVE-2018-12827

flash-plugin: Information Disclosure vulnerabilities (APSB18-25)

Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

CVSS 3.0 · 7.5 High EPSS 31.7% KEV · Not listed
Vendors
Adobe Apple Google and 3 more
Products
Flash Player Mac Os X Chrome Os and 8 more
CVE-2018-12826

flash-plugin: Information Disclosure vulnerabilities (APSB18-25)

Adobe Flash Player 30.0.0.134 and earlier have an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

CVSS 3.0 · 7.5 High EPSS 7.3% KEV · Not listed
Vendors
Adobe Apple Google and 3 more
Products
Flash Player Mac Os X Chrome Os and 8 more
CVE-2018-12825

flash-plugin: Security Mitigation Bypass vulnerability (APSB18-25)

Adobe Flash Player 30.0.0.134 and earlier have a security bypass vulnerability. Successful exploitation could lead to security mitigation bypass.

CVSS 3.0 · 9.8 Critical EPSS 7.0% KEV · Not listed
Vendors
Adobe Apple Google and 3 more
Products
Flash Player Mac Os X Chrome Os and 8 more
CVE-2018-12714

kernel: slab out-of-bounds write in trace/trace_events_filter.c

An issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one line to have been read, thus making the N-1 index invalid. This allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via crafted perf_event_open and mmap system calls.

CVSS 3.1 · 9.8 Critical EPSS 4.9% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2018-12633

kernel: Double-fetch vulnerability in drivers/virt/vboxguest/vboxguest_linux.c:vbg_misc_device_ioctl() allows information leak and local denial of service

An issue was discovered in the Linux kernel through 4.17.2. vbg_misc_device_ioctl() in drivers/virt/vboxguest/vboxguest_linux.c reads the same user data twice with copy_from_user. The header part of the user data is double-fetched, and a malicious user thread can tamper with the critical variables (hdr.size_in and hdr.size_out) in the header between the two fetches because of a race condition, leading to severe kernel errors, such as buffer over-accesses. This bug can cause a local denial of service and information leakage.

CVSS 3.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Vendors
Linux
Products
Linux Kernel
CVE-2018-12233

kernel: Memory corruption in JFS setattr

In the ea_get 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 create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr.

CVSS 3.1 · 7.8 High EPSS 2.4% KEV · Not listed
Vendors
Canonical Linux
Products
Ubuntu Linux Linux Kernel
CVE-2018-12232

kernel: NULL pointer dereference if close and fchownat system calls share a socket file descriptor

In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.

CVSS 3.0 · 5.9 Medium EPSS 6.3% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux
CVE-2018-11508

kernel: Missing initialization in kernel/compat.c:compat_get_timex() allows local attacker to obtain possibly sensitive information via adjtimex

The compat_get_timex function in kernel/compat.c in the Linux kernel before 4.16.9 allows local users to obtain sensitive information from kernel memory via adjtimex.

CVSS 3.0 · 5.5 Medium EPSS 1.7% KEV · Not listed
Vendors
Canonical Linux
Products
Ubuntu Linux Linux Kernel
CVE-2018-11506

kernel: Stack-based buffer overflow in drivers/scsi/sr_ioctl.c allows denial of service or other unspecified impact

The sr_do_ioctl function in drivers/scsi/sr_ioctl.c in the Linux kernel through 4.16.12 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact because sense buffers have different sizes at the CDROM layer and the SCSI layer, as demonstrated by a CDROMREADMODE2 ioctl call.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 1 more
CVE-2018-11412

kernel: out-of-bounds memcpy in fs/ext4/inline.c:ext4_read_inline_data() with crafted ext4 image

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

CVSS 3.0 · 5.9 Medium EPSS 15.6% KEV · Not listed
Vendors
Canonical Linux Redhat
Products
Ubuntu Linux Linux Kernel Enterprise Linux