# CVE-2019-10081: Memory corruption in Apache HTTP Server

> Attacker can cause server crashes via memory corruption in HTTP/2 early pushes when push resources are configured.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 15 Aug 2019
- **Updated:** 4 Aug 2024
- **Also known as:** ALPINE-CVE-2019-10081, CLEANSTART-2026-UK90052, DEBIAN-CVE-2019-10081, GHSA-c2vp-q2q2-hm8m, UBUNTU-CVE-2019-10081

## What is CVE-2019-10081?

CVE-2019-10081 is a high-severity memory corruption vulnerability in Apache Http Server, published on 15 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2019-10081?

It affects 2 products.


Products: Apache Http Server, Debian Debian Linux.

## How do I fix CVE-2019-10081?

Upgrade to a fixed version.

## Is CVE-2019-10081 being exploited?

There is no known exploitation of CVE-2019-10081 in the wild and no public exploit code.

## Other vulnerabilities in Apache Http Server

- [CVE-2021-42013](https://insights.sbomify.com/CVE-2021-42013/): Apache HTTP Server Path Traversal (critical 9.8, exploited in the wild)
- [CVE-2024-38475](https://insights.sbomify.com/CVE-2024-38475/): Apache HTTP Server Improper Escaping of Output (critical 9.1, exploited in the wild)
- [CVE-2021-40438](https://insights.sbomify.com/CVE-2021-40438/): Apache HTTP Server-Side Request Forgery (SSRF) (critical 9.0, exploited in the wild)
- [CVE-2019-0211](https://insights.sbomify.com/CVE-2019-0211/): Apache HTTP Server Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2021-41773](https://insights.sbomify.com/CVE-2021-41773/): Apache HTTP Server Path Traversal (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10081 and fix it if it is affected.

What it is: CVE-2019-10081 is a high-severity memory corruption vulnerability in Apache Http Server, published on 15 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-10081 in the wild and no public exploit code.

Affected product: Apache Http Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-10081/ (Markdown: https://insights.sbomify.com/CVE-2019-10081/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10081
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10081
- OSV: https://osv.dev/vulnerability/CVE-2019-10081

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-10081/
Summaries are generated and may contain mistakes; the official description above is the record.