CVE-2011-5036

NameCVE-2011-5036
DescriptionRack before 1.1.3, 1.2.x before 1.2.5, and 1.3.x before 1.3.6 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
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-2783-1
NVD severitymedium
Debian Bugs653963

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby-rack (PTS)jessie1.5.2-3+deb8u1fixed
jessie (security)1.5.2-3+deb8u2fixed
stretch1.6.4-4+deb9u1fixed
buster2.0.6-3fixed
bullseye, sid2.0.7-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
librack-rubysource(unstable)(unfixed)
librack-rubysourcesqueeze1.1.0-4+squeeze1DSA-2783-1
ruby-racksource(unstable)1.4.0-1653963

Notes

https://github.com/rack/rack/commit/5b9d09a81a9fdc9475f0ab0095cb2a33bf2a8f91

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