UBUNTU-CVE-2022-37660

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UBUNTU-CVE-2022-37660

Summary:

Details: In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacker that successfully bootstrapped public keys with another entity using PKEX in the past, will be able to subvert a future bootstrapping by passively observing public keys, re-using the encrypting element Qi and subtracting it from the captured message M (X = M - Qi). This will result in the public ephemeral key X; the only element required to subvert the PKEX association.

References: https://ubuntu.com/security/CVE-2022-37660, https://www.cve.org/CVERecord?id=CVE-2022-37660, https://link.springer.com/article/10.1007/s10207-025-00988-3, https://w1.fi/cgit/hostap/commit/?id=15af83cf1846870873a011ed4d714732f01cd2e4, https://ubuntu.com/security/notices/USN-7317-1