CVE-2021-3482 Memory corruption in exiv2
A heap-based buffer overflow in Exiv2 allows attackers to execute arbitrary code or cause denial of service via crafted JPG images with malicious EXIF data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-3482?
CVE-2021-3482 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 8 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow via a crafted JPG image containing malicious EXIF data.
Which versions are affected by CVE-2021-3482?
It affects 4 products.
Products include Debian Debian Linux, Exiv2 Exiv2, Fedoraproject Fedora, Redhat Enterprise Linux.
How do I fix CVE-2021-3482?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-3482 being exploited?
There is no known exploitation of CVE-2021-3482 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-7217, CLEANSTART-2024-MV19678, DEBIAN-CVE-2021-3482, GHSA-73rc-8qcm-v2wx, UBUNTU-CVE-2021-3482.