critical · 9.8

Rsync: heap buffer overflow in rsync due to improper checksum length handling

CVE-2024-12084 · published 15 Jan 2025

How serious is it

Severity: critical, CVSS score 9.8 out of 10.
No exploit prediction (EPSS) score yet.
Not on the CISA list of exploited vulnerabilities.
No public exploit in Exploit-DB.

Is your app affected by CVE-2024-12084?

Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.

Who is affected

Red Hat Red Hat Enterprise Linux 10
Red Hat Red Hat Enterprise Linux 6
Red Hat Red Hat Enterprise Linux 7
Red Hat Red Hat Enterprise Linux 8
Red Hat Red Hat Enterprise Linux 9
Red Hat Red Hat OpenShift Container Platform 4
Red Hat Red Hat OpenShift Container Platform 4

How to check

Find out whether you run the affected product and which version, then compare it with the versions above.

How to fix

Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.

Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
If a vulnerable version was live, check your logs and rotate the secrets that server could read.

The advisory

A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

Check your whole app

Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.

References

Merged from CVE List. Last updated 27 Oct 2026. All vulnerabilities · RSS · JSON

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