Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2020-1713)

Published: 2020-07-03 06:18:13
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-2020-1713 advisory.

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

Technical Details:
In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).(CVE-2019-19768) The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.(CVE-2019-18675) An issue was discovered in the Linux kernel through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2.(CVE-2020-9383) There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.(CVE-2020-8649) There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in drivers/tty/vt/vt.c.(CVE-2020-8647) The time subsystem in the Linux kernel, when CONFIG_TIMER_STATS is enabled, allows local users to discover real PID values (as distinguished from PID values inside a PID namespace) by reading the /proc/timer_list file, related to the print_timer function in kernel/time/timer_list.c and the __timer_stats_timer_set_start_info function in kernel/time/timer.c.(CVE-2017-5967) ** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.(CVE-2014-8181) ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size.(CVE-2020-8992) ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2020-12826. Reason: This candidate is a duplicate of CVE-2020-12826. Notes: All CVE users should reference CVE-2020-12826 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.(CVE-2020-10741) A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Ex ... Description truncated. Please see the references for more information.

Affected Versions:
'kernel' Linux Distribution Package(s) on Huawei EulerOS Virtualization 3.0.6.0.

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-2014-8181
https://nvd.nist.gov/vuln/detail/CVE-2017-5967
https://nvd.nist.gov/vuln/detail/CVE-2019-18675
https://nvd.nist.gov/vuln/detail/CVE-2019-19768
https://nvd.nist.gov/vuln/detail/CVE-2019-20636
https://nvd.nist.gov/vuln/detail/CVE-2020-10741
https://nvd.nist.gov/vuln/detail/CVE-2020-10942
https://nvd.nist.gov/vuln/detail/CVE-2020-11565
https://nvd.nist.gov/vuln/detail/CVE-2020-11608
https://nvd.nist.gov/vuln/detail/CVE-2020-11609
https://nvd.nist.gov/vuln/detail/CVE-2020-11668
https://nvd.nist.gov/vuln/detail/CVE-2020-12464
https://nvd.nist.gov/vuln/detail/CVE-2020-12652
https://nvd.nist.gov/vuln/detail/CVE-2020-12653
https://nvd.nist.gov/vuln/detail/CVE-2020-12654
https://nvd.nist.gov/vuln/detail/CVE-2020-12770
https://nvd.nist.gov/vuln/detail/CVE-2020-12826
https://nvd.nist.gov/vuln/detail/CVE-2020-13143
https://nvd.nist.gov/vuln/detail/CVE-2020-8647
https://nvd.nist.gov/vuln/detail/CVE-2020-8649
https://nvd.nist.gov/vuln/detail/CVE-2020-8992
https://nvd.nist.gov/vuln/detail/CVE-2020-9383

References:


https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1713

Severity
High
CVSS Score
7.2
Published
2020-07-03
Modified
2020-07-03
Category
Huawei EulerOS Local Security Checks

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