OracleVM 3.4 : xen (OVMSA-2021-0033)

high Nessus Plugin ID 154015
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.

Synopsis

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

Description

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

- BUILDINFO: OVMF commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8

- BUILDINFO: xen commit=e648ffdcf91e7b77229705ce5ba1d4446fe17660

- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff

- BUILDINFO: QEMU traditional commit=4a8ded640f04b41cdb15ce7c4c0a2c812c1b9e4d

- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- gnttab: replace mapkind (Jan Beulich) [Orabug: 33215771] (CVE-2021-28698) (CVE-2021-28698)

- gnttab: add preemption check to gnttab_release_mappings (Jan Beulich) [Orabug: 33215771] (CVE-2021-28698) (CVE-2021-28698)

- xe/grant: Limit availability of version 2 of grant table interfaces. (Boris Ostrovsky) [Orabug: 33215748] (CVE-2021-28697) (CVE-2021-28701)

- pci: Do not allow passthrough on AMD systems (Boris Ostrovsky) [Orabug: 33215714] (CVE-2021-28695) (CVE-2021-28696) (CVE-2021-28695) (CVE-2021-28696)

- x86/p2m: guard (in particular) identity mapping entries (Jan Beulich) [Orabug: 33215714] (CVE-2021-28694) (CVE-2021-28694)

- x86/p2m: introduce p2m_is_special (Jan Beulich) [Orabug:
33215714] (CVE-2021-28694)

- x86/p2m: don't assert that the passed in MFN matches for a remove (Jan Beulich) [Orabug: 33215714]

- x86/p2m: don't ignore p2m_remove_page's return value (Jan Beulich) [Orabug: 33215714]

- x86/p2m: fix PoD accounting in guest_physmap_add_entry (Jan Beulich) [Orabug: 33215714]

- BUILDINFO: OVMF commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8

- BUILDINFO: xen commit=af11c8054b2c02d72e519d66645fa4b598b14778

- BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff

- BUILDINFO: QEMU traditional commit=4a8ded640f04b41cdb15ce7c4c0a2c812c1b9e4d

- BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e

- BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee

- x86/vpt: fully init timers before putting onto list (Jan Beulich) [Orabug: 33010521]

Solution

Update the affected xen / xen-tools packages.

See Also

http://www.nessus.org/u?c08ff353

Plugin Details

Severity: High

ID: 154015

File Name: oraclevm_OVMSA-2021-0033.nasl

Version: 1.2

Type: local

Published: 10/12/2021

Updated: 10/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-28697

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:vm:xen:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:vm:xen-tools:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2021

Vulnerability Publication Date: 8/27/2021

Reference Information

CVE: CVE-2021-28698, CVE-2021-28695, CVE-2021-28694, CVE-2021-28697, CVE-2021-28696, CVE-2021-28701