# CVE-2019-7664: Integer overflow in n/a

> A crafted ELF file triggers a negative-sized memcpy due to an incorrect overflow check, causing a segmentation fault and denial of service.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 9 Feb 2019
- **Updated:** 4 Aug 2024
- **Also known as:** ALPINE-CVE-2019-7664, DEBIAN-CVE-2019-7664, GHSA-mvjm-8853-rpx4

## What is CVE-2019-7664?

CVE-2019-7664 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 9 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In elfutils 0.175, a negative-sized memcpy is attempted in elf_cvt_note in libelf/note_xlate.h because of an incorrect overflow check. Crafted elf input causes a segmentation fault, leading to denial of service (program crash).

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

## Which versions are affected by CVE-2019-7664?

It affects 8 products.


Products: Elfutils Project Elfutils, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus, Redhat Enterprise Linux Workstation.

## How do I fix CVE-2019-7664?

Upgrade to a fixed version.

## Is CVE-2019-7664 being exploited?

There is no known exploitation of CVE-2019-7664 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Enterprise Linux

- [CVE-2018-8769](https://insights.sbomify.com/CVE-2018-8769/): Memory corruption in n/a (high 7.8)
- [CVE-2014-0172](https://insights.sbomify.com/CVE-2014-0172/): Integer overflow in n/a (medium 6.8)
- [CVE-2019-7148](https://insights.sbomify.com/CVE-2019-7148/): Denial of service in n/a (medium 6.5)
- [CVE-2014-9447](https://insights.sbomify.com/CVE-2014-9447/): Path traversal in n/a (medium 6.4)
- [CVE-2020-21047](https://insights.sbomify.com/CVE-2020-21047/): Memory corruption in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-7664 and fix it if it is affected.

What it is: CVE-2019-7664 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 9 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-7664 in the wild and no public exploit code.

Affected product: Redhat Enterprise Linux. 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-2019-7664/ (Markdown: https://insights.sbomify.com/CVE-2019-7664/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-7664
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-7664
- OSV: https://osv.dev/vulnerability/CVE-2019-7664

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-7664/
Summaries are generated and may contain mistakes; the official description above is the record.