7.9 High
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.079 Low
EPSS
Percentile
94.2%
USN-2500-1 addressed CVE-2015-0255 for xorg-server. This update provides
the corresponding fix for VNC4 on Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
(CVE-2015-0255)
USN-2726-1 addressed CVE-2015-1283 for Expat. This update provides the
corresponding fix for VNC4 on Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
(CVE-2015-1283)
Original advisory details:
Olivier Fourdan discovered that the X.Org X server incorrectly handled
XkbSetGeometry requests resulting in an information leak. An attacker able
to connect to an X server, either locally or remotely, could use this issue
to possibly obtain sensitive information. (CVE-2015-0255)
It was discovered that Expat incorrectly handled malformed XML data. If a
user or application linked against Expat were tricked into opening a
crafted XML file, an attacker could cause a denial of service, or possibly
execute arbitrary code. (CVE-2015-1283)