# CVE-2023-0160: Possibility of deadlock in libbpf function sock_hash_delete_elem

> A local attacker can trigger a deadlock in the Linux kernel BPF subsystem, causing a system crash.

- **Severity:** Medium 4.7 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Jul 2023
- **Updated:** 26 Sep 2024
- **Also known as:** AZL-27536, DEBIAN-CVE-2023-0160, GHSA-m24r-p59v-q652, ROOT-OS-UBUNTU-2204-CVE-2023-0160, ROOT-OS-UBUNTU-2404-CVE-2023-0160, UBUNTU-CVE-2023-0160

## What is CVE-2023-0160?

CVE-2023-0160 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 18 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A deadlock flaw was found in the Linux kernel’s BPF subsystem. This flaw allows a local user to potentially crash the system.

Weakness: CWE-667 (Improper Locking), CWE-833 (Deadlock)

## Which versions are affected by CVE-2023-0160?

It affects 2 products.


Products: Fedoraproject Fedora, Linux kernel.

## How do I fix CVE-2023-0160?

Apply the vendor's patch.

## Is CVE-2023-0160 being exploited?

There is no known exploitation of CVE-2023-0160 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0160 and fix it if it is affected.

What it is: CVE-2023-0160 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 18 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-0160 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. 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-2023-0160/ (Markdown: https://insights.sbomify.com/CVE-2023-0160/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0160
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0160
- OSV: https://osv.dev/vulnerability/CVE-2023-0160

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0160/
Summaries are generated and may contain mistakes; the official description above is the record.