CVE-2019-9494 The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacks

What is CVE-2019-9494?

CVE-2019-9494 is a medium-severity vulnerability in Fedoraproject Fedora, published on 17 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

Weakness: CWE-203, CWE-524, CWE-208

Which versions are affected by CVE-2019-9494?

It affects 8 products.

Products include Fedoraproject Fedora, Freebsd Freebsd, Opensuse Backports Sle, Opensuse Leap, Synology Radius Server, Synology Router Manager and 2 more.

How do I fix CVE-2019-9494?

Upgrade to a fixed version.

Is CVE-2019-9494 being exploited?

There is no known exploitation of CVE-2019-9494 in the wild and no public exploit code.

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• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2019-9494, DEBIAN-CVE-2019-9494, GHSA-cvqc-p7v4-m9pm.