CVE-2021-42731 Adobe Indesign Buffer Overflow Could Lead to Remote Code Execution

What is CVE-2021-42731?

CVE-2021-42731 is a high-severity memory corruption vulnerability in Adobe Indesign, published on 16 Nov 2021. 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 16.4 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Weakness: CWE-120

Which versions are affected by CVE-2021-42731?

It affects 1 product.

Products include Adobe Indesign.

How do I fix CVE-2021-42731?

No fix has been published for CVE-2021-42731 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-2021-42731 being exploited?

There is no known exploitation of CVE-2021-42731 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-wqw8-8r4w-rccx.