CVE-2019-13377

NameCVE-2019-13377
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-4538-1
NVD severitymedium
Debian Bugs934180

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wpa (PTS)jessie2.3-1+deb8u5fixed
jessie (security)2.3-1+deb8u9fixed
stretch (security), stretch2:2.4-1+deb9u4fixed
buster, buster (security)2:2.7+git20190128+0c1e29f-6+deb10u1fixed
bullseye, sid2:2.9-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wpasource(unstable)2:2.9-1934180
wpasourcebuster2:2.7+git20190128+0c1e29f-6+deb10u1DSA-4538-1
wpasourcejessie(not affected)
wpasourcestretch(not affected)

Notes

[stretch] - wpa <not-affected> (Introduced in 2.5)
[jessie] - wpa <not-affected> (Introduced in 2.5)
https://wpa3.mathyvanhoef.com/#new
Added in v2.5: https://w1.fi/cgit/hostap/plain/wpa_supplicant/ChangeLog:
"added support for Brainpool Elliptic Curves with SAE"
Patches: https://w1.fi/security/2019-6/

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