USN-4547-1: iTALC vulnerabilities
28 September 2020
Several security issues were fixed in iTALC.
Releases
Packages
- italc - didact tool which allows teachers to view and control computer labs
Details
It was discovered that an information disclosure vulnerability existed in the
LibVNCServer vendored in iTALC when sending a ServerCutText message. An
attacker could possibly use this issue to expose sensitive information.
(CVE-2019-15681)
It was discovered that the LibVNCServer and LibVNCClient vendored in iTALC
incorrectly handled certain packet lengths. A remote attacker could possibly
use this issue to obtain sensitive information, cause a denial of service, or
execute arbitrary code.
(CVE-2018-15127 CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022,
CVE-2018-20023, CVE-2018-20024, CVE-2018-20748, CVE-2018-20749, CVE-2018-20750,
CVE-2018-7225, CVE-2019-15681)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04
-
italc-client
-
1:3.0.3+dfsg1-3ubuntu0.1
-
italc-master
-
1:3.0.3+dfsg1-3ubuntu0.1
-
libitalccore
-
1:3.0.3+dfsg1-3ubuntu0.1
In general, a standard system update will make all the necessary changes.
Related notices
- USN-3877-1: libvncserver0, libvncserver-config, linuxvnc, libvncclient1, libvncserver1, libvncserver, libvncserver-dev
- USN-4587-1: italc-management-console, italc-master, italc-client, italc, libitalccore
- USN-4547-2: ssvnc
- USN-3618-1: libvncserver0, libvncserver-config, linuxvnc, libvncclient1, libvncserver1, libvncserver, libvncserver-dev
- USN-4573-1: vino
- USN-4407-1: libvncserver-config, libvncclient1, libvncserver1, libvncserver, libvncserver-dev