--- title: "CVE-2011-1548\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-2011-1548?format=md keywords: index, follow --- # CVE-2011-1548 Publication date 30 March 2011 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The default configuration of logrotate on Debian GNU/Linux uses root privileges to process files in directories that permit non-root write access, which allows local users to conduct symlink and hard link attacks by leveraging logrotate's lack of support for untrusted directories, as demonstrated by /var/log/postgresql/. [Read the notes from the security team](https://ubuntu.com/security/CVE-2011-1548?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | logrotate | 11.04 natty | Not affected | | 10.10 maverick | Not affected | | 10.04 LTS lucid | Not affected | | 9.10 karmic | Ignored end of life | | 8.04 LTS hardy | Fixed 3.7.1-3ubuntu0.8.04.1 | | 6.06 LTS dapper | Ignored end of life | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ## Notes --- ### [mdeslaur](https://launchpad.net/~mdeslaur) looks like issue #9, adding RH bug upstream patch adds "su" option variable, and probably breaks backwards compatibility RH proposed patch for CVE-2011-1098 may fix it in a backwards-compatible way pretty much fixed by nofollow.patch and security-388608.patch in lucid+ ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1548) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-1548) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-1548) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-1548) ### Related Ubuntu Security Notices (USN) + [USN-1172-1](https://usn.ubuntu.com/USN-1172-1) + logrotate vulnerabilities + 21 July 2011 ### Other references * * *