OracleVM 3.4 : kernel-uek (OVMSA-2021-0030)

high Nessus Plugin ID 153221

Synopsis

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

Description

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

- In the Android kernel in Pixel C USB monitor driver there is a possible OOB write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. (CVE-2019-9456)

- In the Android kernel in the video driver there is a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (CVE-2019-9458)

- In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-153467744 (CVE-2020-0305)

- In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed.
User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
A-152735806 (CVE-2020-0429)

- In the nl80211_policy policy of nl80211.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not required for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
A-119770583 (CVE-2020-27068)

- The vgacon subsystem in the Linux kernel before 5.8.10 mishandles software scrollback. There is a vgacon_scrolldelta out-of-bounds read, aka CID-973c096f6a85. (CVE-2020-28097)

- net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (CVE-2021-34693)

- .A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.
(CVE-2021-3609)

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 / kernel-uek-firmware packages.

See Also

https://linux.oracle.com/errata/OVMSA-2021-0030.html

https://linux.oracle.com/cve/CVE-2019-9456.html

https://linux.oracle.com/cve/CVE-2019-9458.html

https://linux.oracle.com/cve/CVE-2020-0305.html

https://linux.oracle.com/cve/CVE-2020-0429.html

https://linux.oracle.com/cve/CVE-2020-27068.html

https://linux.oracle.com/cve/CVE-2020-28097.html

https://linux.oracle.com/cve/CVE-2021-34693.html

https://linux.oracle.com/cve/CVE-2021-3609.html

Plugin Details

Severity: High

ID: 153221

File Name: oraclevm_OVMSA-2021-0030.nasl

Version: 1.5

Type: local

Published: 9/13/2021

Updated: 3/31/2022

Risk Information

CVSS Score Source: CVE-2021-3609

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

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

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

Vector: CVSS:3.0/AV:L/AC:H/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:kernel-uek:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:vm:kernel-uek-firmware:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/9/2021

Vulnerability Publication Date: 8/6/2019

Reference Information

CVE: CVE-2019-9456, CVE-2019-9458, CVE-2020-0305, CVE-2020-0429, CVE-2020-27068, CVE-2021-34693, CVE-2021-3609, CVE-2020-28097