VMware Tanzu products update for BusyBox

1) Improper Handling of Exceptional Conditions

EUVDB-ID: #VU51741

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28831

CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions

Exploit availability: No

Description

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

The vulnerability exists due to improper handling of error bit on the huft_build result pointer in decompress_gunzip.c. A remote attacker can pass malformed gzip data to the application, trigger an invalid free and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

VMware Tanzu Application Service for VMs: All versions

VMware Tanzu Operations Manager: 2.9.0 - 2.10.39

Isolation Segment: All versions

External links

http://tanzu.vmware.com/security/usn-5179-2

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.