Description
XRegion in TigerVNC allows remote VNC servers to cause a denial of service (NULL pointer dereference) by leveraging failure to check a malloc return value, a similar issue to CVE-2014-6052.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tigervnc | 1.7.0-2 | — |
| Debian 13 | tigervnc | 1.7.0-2 | — |
| Debian 12 | tigervnc | 1.7.0-2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | tigervnc +6 | 1.3.1-3.el7 | RHSA-2015:2233 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | tigervnc +6 | 1.3.1-3.el7 | ELSA-2015-2233 |
Advisories 3
- RHSA-2015:2233 Red Hat Security Advisory: tigervnc security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- WID-SEC-2025-0661 tigervnc: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 31, 2025
- ELSA-2015-2233 Moderate: tigervnc security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 24, 2015
References
- [oss-security] 20141010 Request for CVE assignment for tigervnc affected by similar flaws as in CVE-2014-6051 and CVE-2014-6052 of libvncserver mailing-list
- RHSA-2015:2233 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1151312
- 70390 vdb-entry
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- [oss-security] 20141011 Re: Request for CVE assignment for tigervnc affected by similar flaws as in CVE-2014-6051 and CVE-2014-6052 of libvncserver mailing-list
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html