Detections
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Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2021-9005)

high Nessus Plugin ID 144904

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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 packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9005 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}

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 packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-9005.html

Plugin Details

Severity: High

ID: 144904

File Name: oraclelinux_ELSA-2021-9005.nasl

Version: 1.6

Type: local

Agent: unix

Published: 1/13/2021

Updated: 11/1/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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-headers, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:kernel-uek-devel, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek-tools-libs-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek-tools-libs, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug

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

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