CVE-2018-3849 Memory corruption in NASA CFITSIO

What is CVE-2018-3849?

CVE-2018-3849 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 16 Apr 2018. 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

In the ffghtb function in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.

Weakness: CWE-787

Which versions are affected by CVE-2018-3849?

It affects 2 products.

Products include Fedoraproject Fedora, Nasa Cfitsio.

How do I fix CVE-2018-3849?

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-2018-3849 being exploited?

There is no known exploitation of CVE-2018-3849 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2018-3849, GHSA-qc33-hp9r-f794, UBUNTU-CVE-2018-3849.