Bug 1418944 (CVE-2017-5884)
Summary: | CVE-2017-5884 gtk-vnc: Improper check of framebuffer boundaries when processing a tile | ||
---|---|---|---|
Product: | [Other] Security Response | Reporter: | Adam Mariš <amaris> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED ERRATA | QA Contact: | |
Severity: | low | Docs Contact: | |
Priority: | low | ||
Version: | unspecified | CC: | berrange, bmcclain, cfergeau, dblechte, eedri, erik-fedora, fidencio, lsurette, mgoldboi, michal.skrivanek, rh-spice-bugs, rjones, sbonazzo, srevivo, virt-maint, ykaul |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | If docs needed, set a value | |
Doc Text: |
It was found that gtk-vnc lacked proper bounds checking while processing messages using RRE, hextile, or copyrect encodings. A remote malicious VNC server could use this flaw to crash VNC viewers which are based on the gtk-vnc library.
|
Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2019-06-08 03:06:59 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 1418955, 1418956, 1425367 | ||
Bug Blocks: | 1415638, 1418954 |
Description
Adam Mariš
2017-02-03 08:52:02 UTC
Created gtk-vnc tracking bugs for this issue: Affects: fedora-all [bug 1418955] Created mingw-gtk-vnc tracking bugs for this issue: Affects: fedora-all [bug 1418956] CVE assignment: http://openwall.com/lists/oss-security/2017/02/05/5 CVE covers all issues mentioned in https://bugzilla.gnome.org/show_bug.cgi?id=778048#c1 Upstream fix in git master is commit ea0386933214c9178aaea9f2f85049ea3fa3e14a Author: Daniel P. Berrange <berrange> Date: Thu Feb 2 17:34:47 2017 +0000 Fix bounds checking for RRE, hextile & copyrect encodings While the client would bounds check the overall update region, it failed to bounds check the payload data parameters. Add a test case to validate bounds checking. https://bugzilla.gnome.org/show_bug.cgi?id=778048 CVE-2017-5884 Signed-off-by: Daniel P. Berrange <berrange> This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2017:2258 https://access.redhat.com/errata/RHSA-2017:2258 |