CVE-2017-17862 Denial of service in n/a

What is CVE-2017-17862?

CVE-2017-17862 is a medium-severity denial of service 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 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service.

Weakness: CWE-20

Which versions are affected by CVE-2017-17862?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2017-17862?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-17862 being exploited?

There is no known exploitation of CVE-2017-17862 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• 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-2017-17862, GHSA-9x5q-ww2j-jw9x, UBUNTU-CVE-2017-17862.