This security advisory describes one high risk vulnerability.

1) Buffer overflow

Severity: High

CVSSv3:
8.1 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID:
CVE-2020-5208

CWE-ID:
CWE-119 – Improper Restriction of Operations within the Bounds of a Memory Buffer

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

ipmitool (Red Hat package):
1.8.18-6.el7_4, 1.8.18-9.el7_5

Red Hat Enterprise Linux for x86_64 – Extended Update Support:
7.6

Red Hat Enterprise Linux Server – Update Services for SAP Solutions:
7.6

Red Hat Enterprise Linux Server – TUS:
7.6

Red Hat Enterprise Linux Server – AUS:
7.6

CPE

External links

https://access.redhat.com/errata/RHSA-2020:2286

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.





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