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Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9008)

high Nessus Plugin ID 144903

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2021-9008 advisory.

 - target: fix XCOPY NAA identifier lookup (David Disseldorp) [Orabug: 32248040] {CVE-2020-28374}
 - xenbus/xenbus_backend: Disallow pending watch messages (SeongJae Park) [Orabug: 32253412] {CVE-2020-29568}
 - xen/xenbus: Count pending messages for each watch (SeongJae Park) [Orabug: 32253412] {CVE-2020-29568}
 - xen/xenbus/xen_bus_type: Support will_handle watch callback (SeongJae Park) [Orabug: 32253412] {CVE-2020-29568}
 - xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path() (SeongJae Park) [Orabug:
 32253412] {CVE-2020-29568}
 - xen/xenbus: Allow watches discard events before queueing (SeongJae Park) [Orabug: 32253412] {CVE-2020-29568}
 - xen-blkback: set ring->xenblkd to NULL after kthread_stop() (Pawel Wieczorkiewicz) [Orabug: 32260256] {CVE-2020-29569}
 - mm: thp: make the THP mapcount atomic against __split_huge_pmd_locked() (Andrea Arcangeli) [Orabug:
 32212583] {CVE-2020-29368}
 - perf/core: Fix race in the perf_mmap_close() function (Jiri Olsa) [Orabug: 32233358] {CVE-2020-14351}
 - icmp: randomize the global rate limiter (Eric Dumazet) [Orabug: 32227961] {CVE-2020-25705}
 - Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts (Peilin Ye) [Orabug: 32176263] {CVE-2020-28915}
 - fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h (Peilin Ye) [Orabug: 32176263] {CVE-2020-28915}
 - block: Fix use-after-free in blkdev_get() (Jason Yan) [Orabug: 32194608] {CVE-2020-15436}
 - serial: 8250: fix null-ptr-deref in serial8250_start_tx() (Yang Yingliang) [Orabug: 32194712] {CVE-2020-15437}
 - vt: Disable KD_FONT_OP_COPY (Daniel Vetter) [Orabug: 32187748] {CVE-2020-28974}
 - xen/events: block rogue events for some time (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/events: defer eoi in case of excessive number of events (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/events: use a common cpu hotplug hook for event channels (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/events: switch user event channels to lateeoi model (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/pciback: use lateeoi irq binding (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/pvcallsback: use lateeoi irq binding (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/scsiback: use lateeoi irq binding (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/netback: use lateeoi irq binding (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/blkback: use lateeoi irq binding (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/events: add a new 'late EOI' evtchn framework (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/events: fix race in evtchn_fifo_unmask() (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - xen/events: add a proper barrier to 2-level uevent unmasking (Juergen Gross) [Orabug: 32177538] {CVE-2020-27673}
 - tty: make FONTX ioctl use the tty pointer they were actually passed (Linus Torvalds) [Orabug: 32122729] {CVE-2020-25668}
 - vt: keyboard, extend func_buf_lock to readers (Jiri Slaby) [Orabug: 32122952] {CVE-2020-25656}
 - vt: keyboard, simplify vt_kdgkbsent (Jiri Slaby) [Orabug: 32122952] {CVE-2020-25656}
 - perf/core: Fix a memory leak in perf_event_parse_addr_filter() (kiyin()) [Orabug: 32131175] {CVE-2020-25704}
 - perf/core: Fix bad use of igrab() (Song Liu) [Orabug: 32131175] {CVE-2020-25704}
 - powercap: restrict energy meter to root access (Kanth Ghatraju) [Orabug: 32138487] {CVE-2020-8694} {CVE-2020-8695}
 - btrfs: inode: Verify inode mode to avoid NULL pointer dereference (Qu Wenruo) [Orabug: 31864726] {CVE-2019-19816}
 - Bluetooth: A2MP: Fix not initializing all members (Luiz Augusto von Dentz) [Orabug: 32021288] {CVE-2020-12352}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel-uek-container package.

See Also

https://linux.oracle.com/errata/ELSA-2021-9008.html

Plugin Details

Severity: High

ID: 144903

File Name: oraclelinux_ELSA-2021-9008.nasl

Version: 1.6

Type: local

Agent: unix

Published: 1/13/2021

Updated: 10/22/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-29569

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-container, cpe:/o:oracle:linux:7

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2021

Vulnerability Publication Date: 12/15/2020

Reference Information

CVE: CVE-2020-28374, CVE-2020-29568, CVE-2020-29569

IAVB: 2020-B-0077-S