CVE-2014-0011

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-01-02 · updated 2026-06-17
Weakness: CWE-787

Description

Multiple heap-based buffer overflows in the ZRLE_DECODE function in common/rfb/zrleDecode.h in TigerVNC before 1.3.1, when NDEBUG is enabled, allow remote VNC servers to cause a denial of service (vncviewer crash) and possibly execute arbitrary code via vectors related to screen image rendering.

Affected products

Kaspersky TigerVNC: before 1.3.1 — fixed in 1.3.1

How to fix

Upgrade to a fixed version: Kaspersky TigerVNC 1.3.1. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1050928
https://github.com/TigerVNC/tigervnc/releases/tag/v1.3.1
https://bugzilla.redhat.com/show_bug.cgi?id=1050928
https://github.com/TigerVNC/tigervnc/releases/tag/v1.3.1

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