What’s Vulnerable › Vulnerabilities

CVE-2010-5304

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-05 · updated 2026-06-16
• Weakness: CWE-476

Description

A NULL pointer dereference flaw was found in the way LibVNCServer before 0.9.9 handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client.

Affected products

• Fedoraproject Fedora: 19, 20, 21
• LibVNCServer: before 0.9.9 — fixed in 0.9.9

How to fix

Upgrade to a fixed version: LibVNCServer 0.9.9. Check the vendor advisory for mitigations.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139814.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140219.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html
• http://seclists.org/oss-sec/2014/q3/639
• http://www.openwall.com/lists/oss-security/2014/09/23/6
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139814.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140219.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html
• http://seclists.org/oss-sec/2014/q3/639
• http://www.openwall.com/lists/oss-security/2014/09/23/6

Get alerted when CVE-2010-5304 or the next vulnerability affects your stack