CVE-2017-12872

NameCVE-2017-12872
DescriptionThe (1) Htpasswd authentication source in the authcrypt module and (2) SimpleSAML_Session class in SimpleSAMLphp 1.14.11 and earlier allow remote attackers to conduct timing side-channel attacks by leveraging use of the standard comparison operator to compare secret material against user input.
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)
ReferencesDLA-1205-1, DLA-1408-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
simplesamlphp (PTS)jessie1.13.1-2+deb8u1vulnerable
jessie (security)1.13.1-2+deb8u2fixed
stretch (security), stretch1.14.11-1+deb9u1vulnerable
buster, sid1.15.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
simplesamlphpsource(unstable)1.14.15-1medium
simplesamlphpsourcejessie1.13.1-2+deb8u2mediumDLA-1408-1
simplesamlphpsourcewheezy1.9.2-1+deb7u1mediumDLA-1205-1

Notes

https://simplesamlphp.org/security/201703-01
Patches: https://github.com/simplesamlphp/simplesamlphp/commit/ab7761d4a523a4ed00479fb1ddba688e7ca72439
https://github.com/simplesamlphp/simplesamlphp/commit/caf764cc2c9b68ac29741070ebdf133a595443f1

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