CVE-2017-17856 Memory corruption in n/a

What is CVE-2017-17856?

CVE-2017-17856 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Dec 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging the lack of stack-pointer alignment enforcement.

Weakness: CWE-119

Which versions are affected by CVE-2017-17856?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2017-17856?

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-2017-17856 being exploited?

There is no known exploitation of CVE-2017-17856 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2017-17856, GHSA-8r3h-6rgp-rrqm.