CVE-2016-6323 Denial of service in n/a

What is CVE-2016-6323?

CVE-2016-6323 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 7 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The makecontext function in the GNU C Library (aka glibc or libc6) before 2.25 creates execution contexts incompatible with the unwinder on ARM EABI (32-bit) platforms, which might allow context-dependent attackers to cause a denial of service (hang), as demonstrated by applications compiled using gccgo, related to backtrace generation.

Weakness: CWE-284

Which versions are affected by CVE-2016-6323?

It affects 3 products.

Products include Fedoraproject Fedora, Gnu Glibc, Opensuse Opensuse.

How do I fix CVE-2016-6323?

Upgrade to a fixed version.

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-2016-6323 being exploited?

There is no known exploitation of CVE-2016-6323 in the wild and no public exploit code.

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• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2016-6323, GHSA-xrcf-wxwq-5jmq, UBUNTU-CVE-2016-6323.