Stack-based buffer overflow in Adobe XMP-Toolkit-SDK - CVE-2021-39847

Vulnerability identifier: #VU64465

CSH Severity: Low

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-39847

CWE-ID: CWE-121

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a boundary error in the XMP Toolkit SDK. A local unauthenticated attacker can trick the victim into opening a specially crafted file, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Adobe XMP-Toolkit-SDK
Ubuntu
exempi (Ubuntu package)
libexempi3 (Ubuntu package)
libexempi8 (Ubuntu package)

Install updates from vendor's website.

Adobe XMP-Toolkit-SDK - update to 2021.07
exempi (Ubuntu package) - addressed in versions 2.4.5-2ubuntu0.1, 2.5.1-1ubuntu0.1, 2.5.2-1ubuntu0.21.10.1, 2.5.2-1ubuntu0.22.04.1
libexempi3 (Ubuntu package) - update to 2.4.5-2ubuntu0.1
libexempi8 (Ubuntu package) - addressed in versions 2.5.1-1ubuntu0.1, 2.5.2-1ubuntu0.21.10.1, 2.5.2-1ubuntu0.22.04.1

• https://helpx.adobe.com/security/products/xmpcore/apsb21-65.html

• Multiple vulnerabilities in Adobe XMP-Toolkit-SDK
• Ubuntu update for exempi