--- title: "CVE-2015-0856\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-2015-0856?format=md keywords: index, follow --- # CVE-2015-0856 Publication date 24 November 2015 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description daemon/Greeter.cpp in sddm before 0.13.0 does not properly disable the KDE crash handler, which allows local users to gain privileges by crashing a greeter when using certain themes, as demonstrated by the plasma-workspace breeze theme. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | sddm | 18.04 LTS bionic | Not affected | | 17.10 artful | Ignored end of life | | 17.04 zesty | Ignored end of life | | 16.10 yakkety | Ignored end of life | | 16.04 LTS xenial | Not affected | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | 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-2015-0856?format=md#patch-details) ### 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 | | --- | --- | | sddm | * Upstream: [4cfed6b](https://github.com/sddm/sddm/commit/4cfed6b0a625593) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0856) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-0856) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-0856) * [Debian](https://security-tracker.debian.org/tracker/CVE-2015-0856) ### Other references *