CVE-2014-6053
MEDIUM · CVSS 5.0EPSS 7.3%EU EUVD
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-19
- EPSS score
- 7.3% (94th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2014-5941)
- Published
- December 15, 2014
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2014-5941 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- debian / debian linux
- libvncserver / libvncserver
References
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
- http://seclists.org/oss-sec/2014/q3/639(Mailing List, Third Party Advisory)
- http://secunia.com/advisories/61506
- http://secunia.com/advisories/61682
- http://ubuntu.com/usn/usn-2365-1(Third Party Advisory)
- http://www.debian.org/security/2014/dsa-3081(Third Party Advisory)
- http://www.ocert.org/advisories/ocert-2014-007.html(Third Party Advisory, US Government Resource)
- http://www.openwall.com/lists/oss-security/2014/09/25/11(Mailing List, Third Party Advisory)
- https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28(Issue Tracking, Patch)
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
- https://security.gentoo.org/glsa/201507-07
- https://usn.ubuntu.com/4573-1/
- https://usn.ubuntu.com/4587-1/
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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