Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2019-1499)

Published: 2020-01-23 11:57:19
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the Huawei EulerOS 'kernel' Linux Distribution Package(s) announced via the EulerOS-SA-2019-1499 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
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 ... Description truncated. Please see the references for more information.

Affected Versions:
'kernel' Linux Distribution Package(s) on Huawei EulerOS Virtualization 3.0.1.0.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-12190
https://nvd.nist.gov/vuln/detail/CVE-2017-12192
https://nvd.nist.gov/vuln/detail/CVE-2017-12193
https://nvd.nist.gov/vuln/detail/CVE-2017-14106
https://nvd.nist.gov/vuln/detail/CVE-2017-14140
https://nvd.nist.gov/vuln/detail/CVE-2017-14489
https://nvd.nist.gov/vuln/detail/CVE-2017-14991
https://nvd.nist.gov/vuln/detail/CVE-2017-15102
https://nvd.nist.gov/vuln/detail/CVE-2017-15115
https://nvd.nist.gov/vuln/detail/CVE-2017-15129
https://nvd.nist.gov/vuln/detail/CVE-2017-15265
https://nvd.nist.gov/vuln/detail/CVE-2017-15274
https://nvd.nist.gov/vuln/detail/CVE-2017-15299
https://nvd.nist.gov/vuln/detail/CVE-2017-15649
https://nvd.nist.gov/vuln/detail/CVE-2017-16525
https://nvd.nist.gov/vuln/detail/CVE-2017-16526
https://nvd.nist.gov/vuln/detail/CVE-2017-16527
https://nvd.nist.gov/vuln/detail/CVE-2017-16528
https://nvd.nist.gov/vuln/detail/CVE-2017-16529
https://nvd.nist.gov/vuln/detail/CVE-2017-16530
https://nvd.nist.gov/vuln/detail/CVE-2017-16531
https://nvd.nist.gov/vuln/detail/CVE-2017-16532

References:

https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1499

Severity
High
CVSS Score
7.2
Published
2020-01-23
Modified
2020-01-23
Category
Huawei EulerOS Local Security Checks

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