CVE-2017-8086 Denial of service in n/a

What is CVE-2017-8086?

CVE-2017-8086 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 2 May 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable.

Weakness: CWE-772

Which versions are affected by CVE-2017-8086?

It affects 2 products.

Products include Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2017-8086?

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-2017-8086 being exploited?

There is no known exploitation of CVE-2017-8086 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-2017-8086, GHSA-h6q2-72mf-2c2f, UBUNTU-CVE-2017-8086.