CVE-2016-9446
The vmnc decoder in the gstreamer does not initialize the render canvas, which allows remote attackers to obtain sensitive information as demonstrated by thumbnailing a simple 1 frame vmnc movie that does not draw to the allocated render canvas.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The vmnc decoder in the gstreamer does not initialize the render canvas, which allows remote attackers to obtain sensitive information as demonstrated by thumbnailing a simple 1 frame vmnc movie that does not draw to the allocated render canvas.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.60% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-665
- Affected
- gstreamer/gstreamer · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · fedoraproject/fedora
- Source
- security@opentext.com
EPSS 3.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2016/11/18/12
- http://www.openwall.com/lists/oss-security/2016/11/18/13
- http://www.securityfocus.com/bid/94423
- https://access.redhat.com/errata/RHSA-2017:2060
- https://bugzilla.gnome.org/show_bug.cgi?id=774533
- https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst/vmnc/vmncdec.c?id=4cb1bcf1422bbcd79c0f683edb7ee85e3f7a31fe
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UM7IXFGHV66KNWGWG6ZBDNKXD2UJL2VQ/
- https://scarybeastsecurity.blogspot.de/2016/11/0day-poc-risky-design-decisions-in.html
- https://security.gentoo.org/glsa/201705-10
- http://www.openwall.com/lists/oss-security/2016/11/18/12
- http://www.openwall.com/lists/oss-security/2016/11/18/13
- http://www.securityfocus.com/bid/94423
- https://access.redhat.com/errata/RHSA-2017:2060
- https://bugzilla.gnome.org/show_bug.cgi?id=774533
- https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst/vmnc/vmncdec.c?id=4cb1bcf1422bbcd79c0f683edb7ee85e3f7a31fe
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UM7IXFGHV66KNWGWG6ZBDNKXD2UJL2VQ/
- https://scarybeastsecurity.blogspot.de/2016/11/0day-poc-risky-design-decisions-in.html
- https://security.gentoo.org/glsa/201705-10
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.