CVE-2017-2910 Memory corruption in libxls

High 8.8 Published Updated

A specially crafted XLS file can trigger an out-of-bounds write in libxls, leading to remote code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2017-2910?

CVE-2017-2910 is a high-severity memory corruption vulnerability in libxls, published on 2 Dec 2020. 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 Out-of-bounds Write vulnerability exists in the xls_addCell function of libxls 2.0. 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-2017-2910?

It affects 1 product.

Products include Libxls Project Libxls.

How do I fix CVE-2017-2910?

No fix has been published for CVE-2017-2910 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-2017-2910 being exploited?

There is no known exploitation of CVE-2017-2910 in the wild and no public exploit code.

Sources

Also known as GHSA-p854-92x2-rx7x, UBUNTU-CVE-2017-2910.

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