Infinite loop in IBM Cloud Pak for Data

1) Infinite loop

EUVDB-ID: #VU32881

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-20907

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop In Lib/tarfile.py in Python. A remote attacker can create a specially crafted TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cloud Pak for Data: before 2.5 patch 6

CPE2.3

• cpe:2.3:a:ibm_corporation:cloud_pak_for_data:*:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/6380956

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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