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: 6.9 [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]
CVE-ID: CVE-2014-8240
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
TigerVNC
How to mitigate CVE-2014-8240
Install update from vendor's website.
External References
- 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