--- title: "CVE-2015-4155\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-2015-4155?format=md keywords: index, follow --- # CVE-2015-4155 Publication date 2 June 2015 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description GNU Parallel before 20150422, when using (1) --pipe, (2) --tmux, (3) --cat, (4) --fifo, or (5) --compress, allows local users to write to arbitrary files via a symlink attack on a temporary file. ### From the Ubuntu Security Team It was discovered that Parallel incorrectly handled symlinks. An attacker could possibly use this issue to insert, edit or obtain sensitive information. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | parallel | 18.10 cosmic | Not affected | | 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 | Fixed 20161222-1~ubuntu0.16.04.1 | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.10 utopic | Ignored end of life | | 14.04 LTS trusty | Fixed 20161222-1~ubuntu0.14.04.1 | | 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) ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4155) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-4155) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-4155) * [Debian](https://security-tracker.debian.org/tracker/CVE-2015-4155) ### Other references * * *