CVE-2021-33287 Memory corruption in n/a

What is CVE-2021-33287?

CVE-2021-33287 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 7 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In NTFS-3G versions < 2021.8.22, when specially crafted NTFS attributes are read in the function ntfs_attr_pread_i, a heap buffer overflow can occur and allow for writing to arbitrary memory or denial of service of the application.

Weakness: CWE-787, CWE-20

Which versions are affected by CVE-2021-33287?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Tuxera Ntfs-3g.

How do I fix CVE-2021-33287?

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-2021-33287 being exploited?

There is no known exploitation of CVE-2021-33287 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 AZL-6750, DEBIAN-CVE-2021-33287, GHSA-85c3-6734-6rqp, UBUNTU-CVE-2021-33287.