Heap-based buffer overflow in TigerVNC - CVE-2014-8240
Published: October 16, 2014 / Updated: August 19, 2020
Vulnerability identifier: #VU41208
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-8240
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: tigervnc.org
Affected software:
TigerVNC
TigerVNC
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Integer overflow in TigerVNC. A remote attacker can use vectors related to screen size handling to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2014-8240
Install update from vendor's website.
Sources
- http://seclists.org/oss-sec/2014/q4/278
- http://seclists.org/oss-sec/2014/q4/300
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/70391
- https://bugzilla.redhat.com/show_bug.cgi?id=1151307
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96947
- https://security.gentoo.org/glsa/201612-36