OracleVM 3.4 : Unbreakable / etc (OVMSA-2021-0005)

medium Nessus Plugin ID 146248
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote OracleVM host is missing one or more security updates.


The remote OracleVM system is missing necessary patches to address critical security updates :

- sysctl: handle overflow in proc_get_long (Christian Brauner) [Orabug: 31588015]

- mwifiex: Fix possible buffer overflows in mwifiex_cmd_append_vsie_tlv (Qing Xu) [Orabug: 31350932] (CVE-2020-12653)

- lockd: don't use interval-based rebinding over TCP (Calum Mackay) [Orabug: 31435700]

- ALSA: rawmidi: Fix racy buffer resize under concurrent accesses (Takashi Iwai) [Orabug: 32240688] (CVE-2020-27786)

- xenbus/xenbus_backend: Disallow pending watch messages (SeongJae Park) [Orabug: 32247942] (CVE-2020-29568)

- xen/xenbus: Count pending messages for each watch (SeongJae Park) [Orabug: 32247942] (CVE-2020-29568)

- xen/xenbus/xen_bus_type: Support will_handle watch callback (SeongJae Park) [Orabug: 32247942] (CVE-2020-29568)

- xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path (SeongJae Park) [Orabug: 32247942] (CVE-2020-29568)

- xen/xenbus: Allow watches discard events before queueing (SeongJae Park) [Orabug: 32247942] (CVE-2020-29568)

- KVM: x86: clflushopt should be treated as a no-op by emulation (David Edmondson) [Orabug: 32251907]

- tty: Fix ->session locking (Jann Horn) [Orabug:
32266682] (CVE-2020-29660)

- tty: Fix ->pgrp locking in tiocspgrp (Jann Horn) [Orabug: 32266682] (CVE-2020-29660)

- tty: core: Use correct spinlock flavor in tiocspgrp (Peter Hurley) [Orabug: 32266682] (CVE-2020-29660)

- mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start (Zhang Xiaohui) [Orabug:
32349208] (CVE-2020-36158)

- target: fix XCOPY NAA identifier lookup (Mike Christie) [Orabug: 32374139] (CVE-2020-28374)


Update the affected kernel-uek / kernel-uek-firmware packages.

See Also

Plugin Details

Severity: Medium

ID: 146248

File Name: oraclevm_OVMSA-2021-0005.nasl

Version: 1.2

Type: local

Published: 2/5/2021

Updated: 2/9/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-36158


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:vm:kernel-uek, p-cpe:/a:oracle:vm:kernel-uek-firmware, cpe:/o:oracle:vm_server:3.4

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/4/2021

Vulnerability Publication Date: 5/5/2020

Reference Information

CVE: CVE-2020-12653, CVE-2020-27786, CVE-2020-28374, CVE-2020-29568, CVE-2020-29660, CVE-2020-36158