#VU51791 Access of Uninitialized Pointer in ESRI products - CVE-2021-29098

Vulnerability identifier: #VU51791

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-29098

CWE-ID: CWE-824

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ArcReader
Universal components / Libraries / Software for developers
ArcGIS Engine
Universal components / Libraries / Software for developers
ArcGIS Pro
Universal components / Libraries / Software for developers
ArcGIS
Universal components / Libraries / Software for developers

Vendor: ESRI

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to an uninitialized pointer issue when processing PMF files. A remote attacker can use a specially crafted file and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ArcReader: All versions

ArcGIS Engine: 10.6.1 - 10.8.1

ArcGIS Pro: 2.7

ArcGIS: All versions

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External links
https://www.esri.com/arcgis-blog/products/arcgis/administration/security-advisory-general-raster/
https://support.esri.com/en/download/7869
https://www.zerodayinitiative.com/advisories/ZDI-21-361/

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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.