CVE-2019-13377 — Observable Discrepancy in Hostapd
Severity
5.9MEDIUMNVD
EPSS
0.7%
top 27.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 15
Latest updateMay 24
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.2 | Impact: 3.6
Affected Packages1 packages
Also affects: Debian Linux 10.0, Fedora 30, Ubuntu Linux 18.04, 19.04
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-m5xx-ghwp-mgmq: The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2↗2022-05-24
CVEList
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OSV
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📋Vendor Advisories
3💬Community
4Bugzilla▶
CVE-2019-13377 hostapd: wpa_supplicant: Timing-based side-channel attack against WPA3's Dragonfly handshake when using Brainpool curves [epel-all]↗2019-08-06
Bugzilla▶
CVE-2019-13377 wpa_supplicant: Timing-based side-channel attack against WPA3's Dragonfly handshake when using Brainpool curves↗2019-08-06
Bugzilla▶
CVE-2019-13377 hostapd: wpa_supplicant: Timing-based side-channel attack against WPA3's Dragonfly handshake when using Brainpool curves [fedora-all]↗2019-08-06
Bugzilla▶
CVE-2019-13377 wpa_supplicant: Timing-based side-channel attack against WPA3's Dragonfly handshake when using Brainpool curves [fedora-all]↗2019-08-06