Multiple vulnerabilities in Oracle VM Server

Published: 2020-04-15 | Updated: 2020-05-25

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2020-8608 CVE-2020-10531 CVE-2020-5208 CVE-2019-11135
CWE-ID	CWE-119 CWE-190 CWE-399
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #4 is available.
Vulnerable software Subscribe	Oracle VM Server for x86 Server applications / Other server solutions
Vendor	Oracle

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

Updated: 25.05.2020

Added vulnerability #4.

1) Buffer overflow

EUVDB-ID: #VU25456

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8608

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within tcp_subr.c file in libslirp. A local user can pass specially crafted data to the application that is using the affected version of library, trigger memory corruption and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Oracle VM Server for x86: 3.4

CPE2.3

cpe:2.3:a:oracle:oracle_vm_server_for_x86:3.4:*:*:*:*:*:*:

External links

http://www.oracle.com/security-alerts/ovmbulletinapr2020.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Integer overflow

EUVDB-ID: #VU26149

Risk: High

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-10531

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in UnicodeString::doAppend() function in common/unistr.cpp. A remote attacker can pass specially crafted string to the application that is using the vulnerable library, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Oracle VM Server for x86: 3.3 - 3.4

CPE2.3

External links

http://www.oracle.com/security-alerts/ovmbulletinapr2020.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Buffer overflow

EUVDB-ID: #VU25111

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-5208

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to multiple functions in ipmitool neglect proper checking of the data received from a remote LAN party. A remote authenticated attacker can trigger memory corruption and execute arbitrary code on the ipmitool side.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Oracle VM Server for x86: 3.4

CPE2.3

cpe:2.3:a:oracle:oracle_vm_server_for_x86:3.4:*:*:*:*:*:*:

External links

http://www.oracle.com/security-alerts/ovmbulletinapr2020.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Resource management error

EUVDB-ID: #VU22704

Risk: Low

CVSSv3.1: 5.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-11135

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the TSX Asynchronous Abort (TAA) in Intel CPUs. The TAA condition, on some microprocessors utilizing speculative execution, may allow an authenticated user to potentially enable information disclosure via a side channel.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle VM Server for x86: 3.4

CPE2.3

cpe:2.3:a:oracle:oracle_vm_server_for_x86:3.4:*:*:*:*:*:*:

External links

http://www.oracle.com/security-alerts/ovmbulletinapr2020.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.