VMware Tanzu products update for Graphviz



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2018-10196
CVE-2019-11023
CVE-2020-18032
CWE-ID CWE-476
CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Isolation Segment
Server applications / Other server solutions

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

Vendor VMware, Inc

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU76078

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-10196

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 dereference error in the rebuild_vlists() function in lib/dotgen/conc.c within the dotgen library. A remote attacker can trick the victim to open a specially crafted file and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Isolation Segment: before 2.11.36, 2.13.21, 3.0.14, 4.0.5, 2.11.36, 2.11.36, 2.11.36

VMware Tanzu Application Service for VMs: before 2.11.42, 2.13.24, 3.0.14, 4.0.5, 2.11.42, 2.11.42, 2.11.42

CPE2.3 External links

http://tanzu.vmware.com/security/usn-5971-1


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.

2) NULL pointer dereference

EUVDB-ID: #VU18637

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11023

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 the agroot() function within cgraphobj.c of the libcgraph.a. A remote attacker can pass specially crafted GraphML input to the affected application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Isolation Segment: before 2.11.36, 2.13.21, 3.0.14, 4.0.5, 2.11.36, 2.11.36, 2.11.36

VMware Tanzu Application Service for VMs: before 2.11.42, 2.13.24, 3.0.14, 4.0.5, 2.11.42, 2.11.42, 2.11.42

CPE2.3 External links

http://tanzu.vmware.com/security/usn-5971-1


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.

3) Heap-based buffer overflow

EUVDB-ID: #VU53290

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-2020-18032

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in lib/common/shapes.c. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and perform a denial of service (DoS) attack.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Isolation Segment: before 2.11.36, 2.13.21, 3.0.14, 4.0.5, 2.11.36, 2.11.36, 2.11.36

VMware Tanzu Application Service for VMs: before 2.11.42, 2.13.24, 3.0.14, 4.0.5, 2.11.42, 2.11.42, 2.11.42

CPE2.3 External links

http://tanzu.vmware.com/security/usn-5971-1


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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