CVE-2017-5956

NameCVE-2017-5956
DescriptionThe vrend_draw_vbo function in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors involving vertext_buffer_index.
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)
NVD severitylow (attack range: local)
Debian Bugs858255

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
virglrenderer (PTS)buster, sid0.7.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
virglrenderersource(unstable)0.6.0-1low858255

Notes

https://cgit.freedesktop.org/virglrenderer/commit/?id=a5ac49940c40ae415eac0cf912eac7070b4ba95d (0.6.0)
https://bugzilla.redhat.com/show_bug.cgi?id=1421073
The original fix opens a memory leak: http://www.openwall.com/lists/oss-security/2017/02/24/2
Additional patch required: https://bugzilla.suse.com/attachment.cgi?id=715395

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