Multiple vulnerabilities in Red Hat Virtualization 4 for RHEL 8



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-10713
CVE-2020-14364
CWE-ID CWE-787
Exploitation vector Local network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software
 Red Hat Virtualization Host
Web applications / Remote management & hosting panels

Red Hat Virtualization
Server applications / Virtualization software

redhat-virtualization-host (Red Hat package)
Operating systems & Components / Operating system package or component

redhat-release-virtualization-host (Red Hat package)
Operating systems & Components / Operating system package or component

imgbased (Red Hat package)
Operating systems & Components / Operating system package or component

cockpit-ovirt (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds Write

EUVDB-ID: #VU32922

Risk: Low

CVSSv4.0: 5.2 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2020-10713

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a local attacker to compromise vulnerable system.

The vulnerability exists due to a "BootHole" issue. An attacker with physical access can install persistent and stealthy bootkits or malicious bootloaders, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host (Red Hat package): before 4.4.2-20200930.0.el8_2

redhat-release-virtualization-host (Red Hat package): before 4.4.2-1.el8ev

imgbased (Red Hat package): before 1.2.12-0.1.el8ev

cockpit-ovirt (Red Hat package): before 0.14.11-1.el8ev

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2020:4172


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Out-of-bounds write

EUVDB-ID: #VU45985

Risk: Medium

CVSSv4.0: 7.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-14364

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to a boundary error within the USB emulator in QEMU. A remote user with access to guest operating system on the guest operating system can send specially crafted USB packets, trigger out-of-bounds write and execute arbitrary code on the host system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Virtualization Host: 4

Red Hat Virtualization: 4

redhat-virtualization-host (Red Hat package): before 4.4.2-20200930.0.el8_2

redhat-release-virtualization-host (Red Hat package): before 4.4.2-1.el8ev

imgbased (Red Hat package): before 1.2.12-0.1.el8ev

cockpit-ovirt (Red Hat package): before 0.14.11-1.el8ev

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2020:4172


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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