CVE-2016-9941
Published: 31 December 2016
Heap-based buffer overflow in rfbproto.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message containing a subrectangle outside of the client drawing area.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
italc Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| upstream |
Released
(1:3.0.3+dfsg1-1+deb9u1, 1:2.0.2+dfsg1-2+deb8u1)
|
|
| xenial |
Released
(1:2.0.2+dfsg1-4ubuntu0.1)
|
|
|
libvncserver Launchpad, Ubuntu, Debian |
precise |
Released
(0.9.8.2-2ubuntu1.2)
|
| upstream |
Released
(0.9.11)
|
|
| trusty |
Released
(0.9.9+dfsg-1ubuntu1.2)
|
|
| xenial |
Released
(0.9.10+dfsg-3ubuntu0.16.04.1)
|
|
| yakkety |
Released
(0.9.10+dfsg-3ubuntu0.16.10.1)
|
|
|
Patches: upstream: https://github.com/LibVNC/libvncserver/commit/5418e8007c248bf9668d22a8c1fa9528149b69f2 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |