--- title: "CVE-2014-6053\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2014-6053?format=md keywords: index, follow --- # CVE-2014-6053 Publication date 24 September 2014 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description 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. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | tightvnc | 26.04 LTS resolute | Needs evaluation | | 25.10 questing | Ignored end of life, was needs-triage | | 25.04 plucky | Ignored end of life, was needs-triage | | 24.10 oracular | Ignored end of life, was needs-triage | | 24.04 LTS noble | Needs evaluation | | 23.10 mantic | Ignored end of life, was needs-triage | | 23.04 lunar | Ignored end of life, was needs-triage | | 22.10 kinetic | Ignored end of life, was needs-triage | | 22.04 LTS jammy | Needs evaluation | | 21.10 impish | Ignored end of life | | 21.04 hirsute | Ignored end of life | | 20.10 groovy | Ignored end of life | | 20.04 LTS focal | Needs evaluation | | 18.04 LTS bionic | Needs evaluation | | 16.04 LTS xenial | Needs evaluation | | 14.04 LTS trusty | Fixed 1.3.9-6.5+deb8u1build0.14.04.1~esm1 Ubuntu Pro | | italc | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Not in release | | 24.10 oracular | Not in release | | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Not in release | | 20.04 LTS focal | Not in release | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Fixed 1:2.0.2+dfsg1-4ubuntu0.1 | | 14.04 LTS trusty | Not in release | | krfb | 26.04 LTS resolute | Not affected | | 25.10 questing | Not affected | | 25.04 plucky | Not affected | | 24.10 oracular | Not affected | | 24.04 LTS noble | Not affected | | 23.10 mantic | Not affected | | 23.04 lunar | Not affected | | 22.10 kinetic | Not affected | | 22.04 LTS jammy | Not affected | | 21.10 impish | Not affected | | 21.04 hirsute | Not affected | | 20.10 groovy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Fixed 4:4.13.3-0ubuntu1.1 | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | libvncserver | 26.04 LTS resolute | Not affected | | 25.10 questing | Not affected | | 25.04 plucky | Not affected | | 24.10 oracular | Not affected | | 24.04 LTS noble | Not affected | | 23.10 mantic | Not affected | | 23.04 lunar | Not affected | | 22.10 kinetic | Not affected | | 22.04 LTS jammy | Not affected | | 21.10 impish | Not affected | | 21.04 hirsute | Not affected | | 20.10 groovy | Not affected | | 20.04 LTS focal | Not affected | | 18.04 LTS bionic | Not affected | | 16.04 LTS xenial | Not affected | | 14.04 LTS trusty | Fixed 0.9.9+dfsg-1ubuntu1.1 | | 12.04 LTS precise | Fixed 0.9.8.2-2ubuntu1.1 | | 10.04 LTS lucid | Ignored end of life | | vino | 26.04 LTS resolute | Not in release | | 25.10 questing | Fixed 3.22.0-6ubuntu1 | | 25.04 plucky | Fixed 3.22.0-6ubuntu1 | | 24.10 oracular | Fixed 3.22.0-6ubuntu1 | | 24.04 LTS noble | Fixed 3.22.0-6ubuntu1 | | 23.10 mantic | Fixed 3.22.0-6ubuntu1 | | 23.04 lunar | Fixed 3.22.0-6ubuntu1 | | 22.10 kinetic | Fixed 3.22.0-6ubuntu1 | | 22.04 LTS jammy | Fixed 3.22.0-6ubuntu1 | | 21.10 impish | Fixed 3.22.0-6ubuntu1 | | 21.04 hirsute | Fixed 3.22.0-6ubuntu1 | | 20.10 groovy | Fixed 3.22.0-6ubuntu1 | | 20.04 LTS focal | Fixed 3.22.0-5ubuntu2.1 | | 18.04 LTS bionic | Fixed 3.22.0-3ubuntu1.1 | | 16.04 LTS xenial | Fixed 3.8.1-0ubuntu9.3 | | 14.04 LTS trusty | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2014-6053?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | krfb | * Upstream: | | libvncserver | * Upstream: [6037a90](https://github.com/LibVNC/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6053) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-6053) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-6053) * [Debian](https://security-tracker.debian.org/tracker/CVE-2014-6053) ### Related Ubuntu Security Notices (USN) + [USN-2365-1](https://usn.ubuntu.com/USN-2365-1) + LibVNCServer vulnerabilities + 29 September 2014 + [USN-4573-1](https://usn.ubuntu.com/USN-4573-1) + Vino vulnerabilities + 7 October 2020 + [USN-4587-1](https://usn.ubuntu.com/USN-4587-1) + iTALC vulnerabilities + 20 October 2020 ### Other references * * * *