# CVE-2019-17450: Denial of service in n/a

> Remote attackers can cause a denial of service via infinite recursion in the BFD library when processing crafted ELF files.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 10 Oct 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-17450, GHSA-8c3q-4m86-34f8, RHSA-2020:4465, UBUNTU-CVE-2019-17450

## What is CVE-2019-17450?

CVE-2019-17450 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 10 Oct 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

find_abstract_instance in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.32, allows remote attackers to cause a denial of service (infinite recursion and application crash) via a crafted ELF file.

Weakness: CWE-674 (Uncontrolled Recursion)

## Which versions are affected by CVE-2019-17450?

It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `binutils-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.30-79.el8 |
| `binutils-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.30-79.el8 |
| `binutils-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.30-79.el8 |
| `binutils` | Red Hat:enterprise_linux:8::baseos | All versions | 0:2.30-79.el8 |
| `binutils-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:2.30-79.el8 |
| `binutils-debugsource` | Red Hat:enterprise_linux:8::baseos | All versions | 0:2.30-79.el8 |

Products: Canonical Ubuntu Linux, Gnu Binutils, Opensuse Leap.

## How do I fix CVE-2019-17450?

Apply the vendor's patch.

## Is CVE-2019-17450 being exploited?

There is no known exploitation of CVE-2019-17450 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-17450 and fix it if it is affected.

What it is: CVE-2019-17450 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 10 Oct 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-17450 in the wild and no public exploit code.

Affected product: Canonical Ubuntu 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-2019-17450/ (Markdown: https://insights.sbomify.com/CVE-2019-17450/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-17450
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-17450
- OSV: https://osv.dev/vulnerability/CVE-2019-17450

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-17450/
Summaries are generated and may contain mistakes; the official description above is the record.