CVE-2021-21101 Adobe Illustrator TTF font parsing out-of-bounds write vulnerability could lead to remote code execution
An attacker can achieve arbitrary code execution by tricking a user into opening a maliciously crafted TTF font file in Adobe Illustrator.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-21101?
CVE-2021-21101 is a high-severity memory corruption vulnerability in Adobe Illustrator, published on 28 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Adobe Illustrator version 25.2 (and earlier) is affected by an Out-of-bounds Write 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-787
Which versions are affected by CVE-2021-21101?
It affects 1 product.
Products include Adobe Illustrator.
How do I fix CVE-2021-21101?
No fix has been published for CVE-2021-21101 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-2021-21101 being exploited?
There is no known exploitation of CVE-2021-21101 in the wild and no public exploit code.
Other vulnerabilities in Adobe Illustrator
Sources
Also known as GHSA-9gjq-vmr7-6qgx.