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CVE-2014-8240

7.5 · HIGH

Integer overflow in TigerVNC allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to screen size handling, which triggers a heap-ba…

Published Oct 16, 2014tigervncCWE-119EPSS 3.55%

Overview

CVE-2014-8240 is a high-severity vulnerability affecting tigervnc tigervnc. It was published on October 16, 2014 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Integer overflow in TigerVNC allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to screen size handling, which triggers a heap-based buffer overflow, a similar issue to CVE-2014-6051.

Remediation

Check the references section for vendor advisories and patches from tigervnc. Update tigervnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refseclists.org/oss-sec/2014/q4/278Refseclists.org/oss-sec/2014/q4/300Refwww.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlRefwww.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlRefwww.securityfocus.com/bid/70391Refbugzilla.redhat.com/show_bug.cgi?id=1151307Refexchange.xforce.ibmcloud.com/vulnerabilities/96947Refsecurity.gentoo.org/glsa/201612-36Refseclists.org/oss-sec/2014/q4/278Refseclists.org/oss-sec/2014/q4/300

How CyberStrike helps

Frequently asked questions

What is CVE-2014-8240?

CVE-2014-8240 is a high-severity vulnerability affecting tigervnc tigervnc. It was published on October 16, 2014 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2014-8240?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2014-8240?

Check the references section for vendor advisories and patches from tigervnc. Update tigervnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2014-8240?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-8240 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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