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VPR Score: 6.7
SynopsisThe remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.
DescriptionAccording 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 hid_input_field() function in 'drivers/hid/hid-core.c' in the Linux kernel before 4.6 allows physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device.(CVE-2016-7915i1/4%0
- The Linux kernel, before version 4.14.2, is vulnerable to a deadlock caused by fs/ocfs2/file.c:ocfs2_setattr(), as the function does not wait for DIO requests before locking the inode.
This can be exploited by local users to cause a subsequent denial of service.(CVE-2017-18204i1/4%0
- The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.(CVE-2017-9605i1/4%0
- Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.c in the Linux kernel through 3.13.6 allows attackers to obtain sensitive information from kernel memory by leveraging the absence of a certain orphaning operation. NOTE: the affected code was moved to the skb_zerocopy function in net/core/skbuff.c before the vulnerability was announced.(CVE-2014-2568i1/4%0
- It was found that the Linux kernel's ISO file system implementation did not correctly limit the traversal of Rock Ridge extension Continuation Entries (CE). An attacker with physical access to the system could use this flaw to trigger an infinite loop in the kernel, resulting in a denial of service.(CVE-2014-9420i1/4%0
- An integer overflow vulnerability was found in the ring_buffer_resize() calculations in which a privileged user can adjust the size of the ringbuffer message size. These calculations can create an issue where the kernel memory allocator will not allocate the correct count of pages yet expect them to be usable. This can lead to the ftrace() output to appear to corrupt kernel memory and possibly be used for privileged escalation or more likely kernel panic.(CVE-2016-9754i1/4%0
- A symlink size validation was missing in Linux kernels built with UDF file system (CONFIG_UDF_FS) support, allowing the corruption of kernel memory. An attacker able to mount a corrupted/malicious UDF file system image could cause the kernel to crash.(CVE-2014-9730i1/4%0
- In was found that in the Linux kernel, in vmw_surface_define_ioctl() function in 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file, a 'num_sizes' parameter is assigned a user-controlled value which is not checked if it is zero. This is used in a call to kmalloc() and later leads to dereferencing ZERO_SIZE_PTR, which in turn leads to a GPF and possibly to a kernel panic.(CVE-2017-7261i1/4%0
- A race condition flaw was found in the way the Linux kernel keys management subsystem performed key garbage collection. A local attacker could attempt accessing a key while it was being garbage collected, which would cause the system to crash.(CVE-2014-9529i1/4%0
- A flaw was found in the Linux kernel's implementation of i8042 serial ports. An attacker could cause a kernel panic if they are able to add and remove devices as the module is loaded.(CVE-2017-18079i1/4%0
- drivers/hid/hid-pl.c in the Human Interface Device (HID) subsystem in the Linux kernel through 3.11, when CONFIG_HID_PANTHERLORD is enabled, allows physically proximate attackers to cause a denial of service (heap-based out-of-bounds write) via a crafted device.(CVE-2013-2892i1/4%0
- The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.(CVE-2014-7843i1/4%0
- A divide-by-zero vulnerability was found in a way the kernel processes TCP connections. The error can occur if a connection starts another cwnd reduction phase by setting tp-i1/4zprior_cwnd to the current cwnd (0) in tcp_init_cwnd_reduction(). A remote, unauthenticated attacker could use this flaw to crash the kernel (denial of service).(CVE-2016-2070i1/4%0
- The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.(CVE-2016-2383i1/4%0
- System using the infiniband support module ib_srpt were vulnerable to a denial of service by system crash by a local attacker who is able to abort writes to a device using this initiator.(CVE-2016-6327i1/4%0
- A security flaw was found in the Linux kernel in the mark_source_chains() function in 'net/ipv4/netfilter/ip_tables.c'. It is possible for a user-supplied 'ipt_entry' structure to have a large 'next_offset' field. This field is not bounds checked prior to writing to a counter value at the supplied offset.(CVE-2016-3134i1/4%0
- An out-of-bounds access issue was discovered in yurex_read() in drivers/usb/misc/yurex.c in the Linux kernel. A local attacker could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges.(CVE-2018-16276i1/4%0
- drivers/media/v4l2-core/videobuf2-v4l2.c in the Linux kernel before 4.5.3 allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a crafted number of planes in a VIDIOC_DQBUF ioctl call.(CVE-2016-4568i1/4%0
- The usb_serial_console_disconnect function in drivers/usb/serial/console.c in the Linux kernel, before 4.13.8, allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device, related to disconnection and failed setup.(CVE-2017-16525i1/4%0
- The Linux kernel is vulnerable to a NULL pointer dereference in the ext4/xattr.c:ext4_xattr_inode_hash() function. An attacker could trick a legitimate user or a privileged attacker could exploit this to cause a NULL pointer dereference with a crafted ext4 image.
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected kernel packages.