CVE-2021-39820 Adobe InDesign Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution

What is CVE-2021-39820?

CVE-2021-39820 is a high-severity memory corruption vulnerability in Adobe Indesign, published on 15 Jun 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Adobe InDesign versions 16.3 (and earlier), and 16.3.1 (and earlier) is affected by an Out-of-bounds Write vulnerability due to insecure handling of a malicious TIFF file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

Weakness: CWE-787

Which versions are affected by CVE-2021-39820?

It affects 1 product.

Products include Adobe Indesign.

How do I fix CVE-2021-39820?

No fix has been published for CVE-2021-39820 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-39820 being exploited?

There is no known exploitation of CVE-2021-39820 in the wild and no public exploit code.

Other vulnerabilities in Adobe Indesign

• CVE-2019-7107 Code injection in InDesign Critical 9.8
• CVE-2017-11302 Memory corruption in Adobe InDesign 12.1.0 and earlier versions Critical 9.8
• CVE-2016-7886 Memory corruption in Adobe InDesign 11.4.1 and earlier, InDesign Server 11.0.0 and earlier Critical 9.8
• CVE-2021-36004 Adobe InDesign CoolType out of bounds write vulnerability could lead to arbitrary stack manipulation High 8.8
• CVE-2021-21098 Adobe InDesign PCX file parsing out-of-bounds write vulnerability could lead to remote code execution High 8.8

All Adobe Indesign vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fpr8-8mr7-5wxx.