CVE-2017-2923 Memory corruption in FreeXL

What is CVE-2017-2923?

CVE-2017-2923 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 24 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

An exploitable heap based buffer overflow vulnerability exists in the 'read_biff_next_record function' of FreeXL 1.0.3. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability.

Weakness: CWE-787

Which versions are affected by CVE-2017-2923?

It affects 2 products.

Products include Debian Debian Linux, Freexl Project Freexl.

How do I fix CVE-2017-2923?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-2923 being exploited?

There is no known exploitation of CVE-2017-2923 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2017-2923, GHSA-3wq9-hv2f-46q4, UBUNTU-CVE-2017-2923.