# CVE-2024-25714: Security feature bypass in n/a

> An attacker can bypass HMAC signature verification in Rhonabwy via timing side-channel attacks due to non-constant-time string comparison.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Feb 2024
- **Updated:** 1 Aug 2024
- **Also known as:** DEBIAN-CVE-2024-25714, GHSA-69gh-8q3c-phmc, UBUNTU-CVE-2024-25714

## What is CVE-2024-25714?

CVE-2024-25714 is a critical vulnerability in Debian Debian Linux, published on 11 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel attacks, because it stops the comparison when the first difference is spotted in the two signatures. (The fix uses gnutls_memcmp, which has constant-time execution.)

Weakness: CWE-203 (Observable Discrepancy), CWE-1255 (Comparison Logic is Vulnerable to Power Side-Channel Attacks)

## Which versions are affected by CVE-2024-25714?

It affects 2 products.


Products: Debian Debian Linux, Rhonabwy Project Rhonabwy.

## How do I fix CVE-2024-25714?

Apply the vendor's patch.

## Is CVE-2024-25714 being exploited?

There is no known exploitation of CVE-2024-25714 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-25714 and fix it if it is affected.

What it is: CVE-2024-25714 is a critical vulnerability in Debian Debian Linux, published on 11 Feb 2024. 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-2024-25714 in the wild and no public exploit code.

Affected product: Debian Debian 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-2024-25714/ (Markdown: https://insights.sbomify.com/CVE-2024-25714/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-25714
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-25714
- OSV: https://osv.dev/vulnerability/CVE-2024-25714

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-25714/
Summaries are generated and may contain mistakes; the official description above is the record.