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EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1499)

high Nessus Plugin ID 124822

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

 - It was found that in the Linux kernel through v4.14-rc5, bio_map_user_iov() and bio_unmap_user() in 'block/bio.c' do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bio_add_pc_page() merges them into one, but the page reference is never dropped, causing a memory leak and possible system lockup due to out-of-memory condition.(CVE-2017-12190)

 - A vulnerability was found in the Key Management sub component of the Linux kernel, where when trying to issue a KEYTCL_READ on a negative key would lead to a NULL pointer dereference. A local attacker could use this flaw to crash the kernel.(CVE-2017-12192)

 - A flaw was found in the Linux kernel's implementation of associative arrays introduced in 3.13. This functionality was backported to the 3.10 kernels in Red Hat Enterprise Linux 7. The flaw involved a null pointer dereference in assoc_array_apply_edit() due to incorrect node-splitting in assoc_array implementation.
 This affects the keyring key type and thus key addition and link creation operations may cause the kernel to panic.(CVE-2017-12193)

 - A divide-by-zero vulnerability was found in the
 __tcp_select_window function in the Linux kernel. This can result in a kernel panic causing a local denial of service.(CVE-2017-14106)

 - The move_pages system call in mm/migrate.c in the Linux kernel doesn't check the effective uid of the target process. This enables a local attacker to learn the memory layout of a setuid executable allowing mitigation of ASLR.(CVE-2017-14140)

 - The iscsi_if_rx() function in 'drivers/scsi/scsi_transport_iscsi.c' in the Linux kernel from v2.6.24-rc1 through 4.13.2 allows local users to cause a denial of service (a system panic) by making a number of certain syscalls by leveraging incorrect length validation in the kernel code.(CVE-2017-14489)

 - The sg_ioctl() function in 'drivers/scsi/sg.c' in the Linux kernel, from version 4.12-rc1 to 4.14-rc2, allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for '/dev/sg0'.(CVE-2017-14991)

 - The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.(CVE-2017-15102)

 - A vulnerability was found in the Linux kernel when peeling off an association to the socket in another network namespace. All transports in this association are not to be rehashed and keep using the old key in hashtable, thus removing transports from hashtable when closing the socket, all transports are being freed.
 Later on a use-after-free issue could be caused when looking up an association and dereferencing the transports.(CVE-2017-15115)

 - A use-after-free vulnerability was found in a network namespaces code affecting the Linux kernel since v4.0-rc1 through v4.15-rc5. The function get_net_ns_by_id() does not check for the net::count value after it has found a peer network in netns_ids idr which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.(CVE-2017-15129)

 - A use-after-free vulnerability was found when issuing an ioctl to a sound device. This could allow a user to exploit a race condition and create memory corruption or possibly privilege escalation.(CVE-2017-15265)

 - A flaw was found in the implementation of associative arrays where the add_key systemcall and KEYCTL_UPDATE operations allowed for a NULL payload with a nonzero length. When accessing the payload within this length parameters value, an unprivileged user could trivially cause a NULL pointer dereference (kernel oops).(CVE-2017-15274)

 - A vulnerability was found in the key management subsystem of the Linux kernel. An update on an uninstantiated key could cause a kernel panic, leading to denial of service (DoS).(CVE-2017-15299)

 - It was found that fanout_add() in 'net/packet/af_packet.c' in the Linux kernel, before version 4.13.6, allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free bug.(CVE-2017-15649)

 - 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-2017-16525)

 - The drivers/uwb/uwbd.c in the Linux kernel, before 4.13.6, allows local users to cause a denial of service (general protection fault and system crash) or possibly have unspecified other impact via a crafted USB device.(CVE-2017-16526)

 - The sound/usb/mixer.c in the Linux kernel, before 4.13.8, allows local users to cause a denial of service (snd_usb_mixer_interrupt use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device.(CVE-2017-16527)

 - The sound/core/seq_device.c in the Linux kernel, before 4.13.4, allows local users to cause a denial of service (snd_rawmidi_dev_seq_free use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device.(CVE-2017-16528)

 - The snd_usb_create_streams function in sound/usb/card.c in the Linux kernel, before 4.13.6, allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device.(CVE-2017-16529)

 - The uas driver in the Linux kernel before 4.13.6 allows local users to cause a denial of service (out-of-bounds read and system crash), or possibly have unspecified other impacts via a crafted USB device, related to drivers/usb/storage/uas-detect.h and drivers/usb/storage/uas.c.(CVE-2017-16530)

 - The function drivers/usb/core/config.c in the Linux kernel, allows local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device, related to the USB_DT_INTERFACE_ASSOCIATION descriptor.(CVE-2017-16531)

 - The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device.(CVE-2017-16532)

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.

Solution

Update the affected kernel packages.

See Also

http://www.nessus.org/u?95557cab

Plugin Details

Severity: High

ID: 124822

File Name: EulerOS_SA-2019-1499.nasl

Version: 1.20

Type: local

Published: 5/13/2019

Updated: 5/20/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2017-16532

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2017-16526

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:kernel, p-cpe:/a:huawei:euleros:kernel-devel, p-cpe:/a:huawei:euleros:kernel-headers, p-cpe:/a:huawei:euleros:kernel-tools, p-cpe:/a:huawei:euleros:kernel-tools-libs, p-cpe:/a:huawei:euleros:kernel-tools-libs-devel, p-cpe:/a:huawei:euleros:perf, p-cpe:/a:huawei:euleros:python-perf, cpe:/o:huawei:euleros:uvp:3.0.1.0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/9/2019

Reference Information

CVE: CVE-2017-12190, CVE-2017-12192, CVE-2017-12193, CVE-2017-14106, CVE-2017-14140, CVE-2017-14489, CVE-2017-14991, CVE-2017-15102, CVE-2017-15115, CVE-2017-15129, CVE-2017-15265, CVE-2017-15274, CVE-2017-15299, CVE-2017-15649, CVE-2017-16525, CVE-2017-16526, CVE-2017-16527, CVE-2017-16528, CVE-2017-16529, CVE-2017-16530, CVE-2017-16531, CVE-2017-16532