Multiple vulnerabilities in VMware Tanzu Products



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-20482
CVE-2019-9923
CWE-ID CWE-835
CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 VMware Tanzu Operations Manager
Server applications / Virtualization software

Isolation Segment
Server applications / Other server solutions

VMware Tanzu Application Service for VMs
Server applications / Other server solutions

Platform Automation Toolkit
Other software / Other software solutions

Tanzu Greenplum for Kubernetes
Other software / Other software solutions

Vendor VMware, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU16782

Risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-20482

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

Exploit availability: No

Description

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

The vulnerability exists due to the application mishandles file shrinkage during read access when --sparse is used. A local attacker can trigger infinite read loop in sparse_dump_region in sparse.c by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root) and cause denial of service conditions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

VMware Tanzu Operations Manager: before 2.7.28, 2.9.16, 2.10.5, 2.7.28, 2.7.28

Isolation Segment: before 2.7.30, 2.8.24, 2.9.18, 2.10.10, 2.7.30, 2.7.30, 2.7.30

VMware Tanzu Application Service for VMs: before 2.7.31, 2.8.25, 2.9.19, 2.10.11, 2.7.31, 2.7.31, 2.7.31

Platform Automation Toolkit: before 4.4.19

Tanzu Greenplum for Kubernetes: before 2.0.0

CPE2.3 External links

https://tanzu.vmware.com/security/usn-4692-1


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.

2) NULL pointer dereference

EUVDB-ID: #VU18058

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-9923

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dreference error in sparse.c in when parsing certain archives that have malformed extended headers. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

VMware Tanzu Operations Manager: before 2.7.28, 2.9.16, 2.10.5, 2.7.28, 2.7.28

Isolation Segment: before 2.7.30, 2.8.24, 2.9.18, 2.10.10, 2.7.30, 2.7.30, 2.7.30

VMware Tanzu Application Service for VMs: before 2.7.31, 2.8.25, 2.9.19, 2.10.11, 2.7.31, 2.7.31, 2.7.31

Platform Automation Toolkit: before 4.4.19

Tanzu Greenplum for Kubernetes: before 2.0.0

CPE2.3 External links

https://tanzu.vmware.com/security/usn-4692-1


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.



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