CVE-2017-3120 Use after free in Acrobat Reader

What is CVE-2017-3120?

CVE-2017-3120 is a high-severity use after free vulnerability in Adobe Acrobat, published on 11 Aug 2017. 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 Acrobat Reader 2017.009.20058 and earlier, 2017.008.30051 and earlier, 2015.006.30306 and earlier, and 11.0.20 and earlier has an exploitable use after free vulnerability in the XFA parsing engine when handling certain types of internal instructions. Successful exploitation could lead to arbitrary code execution.

Weakness: CWE-416

Which versions are affected by CVE-2017-3120?

It affects 4 products.

Products include Adobe Acrobat, Adobe Acrobat Dc, Adobe Acrobat Reader Dc, Adobe Reader.

How do I fix CVE-2017-3120?

No fix has been published for CVE-2017-3120 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2017-3120 being exploited?

There is no known exploitation of CVE-2017-3120 in the wild and no public exploit code.

Other vulnerabilities in Adobe Acrobat

• CVE-2021-28550 Adobe Acrobat and Reader Use-After-Free Exploited Critical 9.6
• CVE-2021-21017 Adobe Acrobat and Reader Heap-based Buffer Overflow Exploited High 8.8
• CVE-2014-0546 Adobe Reader and Acrobat Sandbox Bypass Exploited High 8.8
• CVE-2014-0496 Adobe Reader and Acrobat Use-After-Free Exploited High 8.8
• CVE-2013-3346 Adobe Reader and Acrobat Memory Corruption Exploited High 8.8

All Adobe Acrobat vulnerabilities

Sources

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

Also known as GHSA-33p9-3qx3-xpc6.