CVE-2019-15225 Denial of service in n/a

What is CVE-2019-15225?

CVE-2019-15225 is a high-severity denial of service vulnerability in Envoyproxy Envoy, published on 19 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Envoy through 1.11.1, users may configure a route to match incoming path headers via the libstdc++ regular expression implementation. A remote attacker may send a request with a very long URI to result in a denial of service (memory consumption). This is a related issue to CVE-2019-14993.

Weakness: CWE-770

Which versions are affected by CVE-2019-15225?

It affects 1 product.

Products include Envoyproxy Envoy.

How do I fix CVE-2019-15225?

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-2019-15225 being exploited?

There is no known exploitation of CVE-2019-15225 in the wild and no public exploit code.

Other vulnerabilities in Envoyproxy Envoy

• CVE-2022-29226 Trivial authentication bypass in Envoy Critical 10.0
• CVE-2019-18801 Memory corruption in n/a Critical 9.8
• CVE-2019-18802 Security feature bypass in n/a Critical 9.8
• CVE-2020-35470 Information disclosure in n/a High 8.8
• CVE-2024-23324 Envoy ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata High 8.6

All Envoyproxy Envoy vulnerabilities

Sources

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

Also known as GHSA-fgr2-cr98-vm44.