Detections
Analytics

Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9087)

high Nessus Plugin ID 147205

Language:

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-2021-9087 advisory.

 - ovl: verify permissions in ovl_path_open() (Miklos Szeredi) [Orabug: 32435220] {CVE-2020-16120}
 - ovl: switch to mounter creds in readdir (Miklos Szeredi) [Orabug: 32435220] {CVE-2020-16120}
 - futex: Handle faults correctly for PI futexes (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - futex: Simplify fixup_pi_state_owner() (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - futex: Use pi_state_update_owner() in put_pi_state() (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - rtmutex: Remove unused argument from rt_mutex_proxy_unlock() (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - futex: Provide and use pi_state_update_owner() (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - futex: Replace pointless printk in fixup_owner() (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - futex: Ensure the correct return value from futex_lock_pi() (Thomas Gleixner) [Orabug: 32447189] {CVE-2021-3347}
 - futex: Don't enable IRQs unconditionally in put_pi_state() (Dan Carpenter) [Orabug: 32447189] {CVE-2021-3347}
 - nbd: freeze the queue while we're adding connections (Josef Bacik) [Orabug: 32447287] {CVE-2021-3348}

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-2021-9087.html

Plugin Details

Severity: High

ID: 147205

File Name: oraclelinux_ELSA-2021-9087.nasl

Version: 1.7

Type: local

Agent: unix

Published: 3/9/2021

Updated: 10/22/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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-2021-3347

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

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/9/2021

Vulnerability Publication Date: 10/16/2020

Reference Information

CVE: CVE-2020-16120, CVE-2021-3347, CVE-2021-3348