CVE-2011-3631 Integer overflow in hardlink

What is CVE-2011-3631?

CVE-2011-3631 is a high-severity vulnerability in Debian Debian Linux, published on 26 Nov 2019. 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

Hardlink before 0.1.2 has multiple integer overflows leading to heap-based buffer overflows because of the way string lengths concatenation is done in the calculation of the required memory space to be used. A remote attacker could provide a specially-crafted directory tree and trick the local user into consolidating it, leading to hardlink executable crash or potentially arbitrary code execution with user privileges.

Weakness: CWE-190

Which versions are affected by CVE-2011-3631?

It affects 3 products.

Products include Debian Debian Linux, Hardlink Project Hardlink, Redhat Enterprise Linux.

How do I fix CVE-2011-3631?

Upgrade to a fixed version.

Is CVE-2011-3631 being exploited?

There is no known exploitation of CVE-2011-3631 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 GHSA-j3j5-x3ff-v276.