CVE-2021-45067 Adobe Acrobat Reader Memory Corruption could lead to Information Disclosure
An attacker can disclose sensitive memory and bypass ASLR by tricking a user into opening a malicious PDF file in Adobe Acrobat Reader.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-45067?
CVE-2021-45067 is a medium-severity memory corruption vulnerability in Adobe Acrobat, published on 14 Jan 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
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by an Access of Memory Location After End of Buffer vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Which versions are affected by CVE-2021-45067?
It affects 4 products.
Products include Adobe Acrobat, Adobe Acrobat Dc, Adobe Acrobat Reader, Adobe Acrobat Reader Dc.
How do I fix CVE-2021-45067?
No fix has been published for CVE-2021-45067 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-2021-45067 being exploited?
There is no known exploitation of CVE-2021-45067 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Adobe Acrobat
Sources
Also known as GHSA-grh3-9qm5-9w2v.