CWE
59
Advisory Published
Updated

CVE-2018-19044

First published: Thu Nov 08 2018(Updated: )

keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Keepalived Keepalived=2.0.8
redhat/keepalived<2.0.9
2.0.9

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Frequently Asked Questions

  • What is CVE-2018-19044?

    CVE-2018-19044 is a vulnerability in keepalived 2.0.8 that allows local users to overwrite arbitrary files if fs.protected_symlinks is set to 0.

  • What is the severity of CVE-2018-19044?

    The severity of CVE-2018-19044 is medium, with a severity value of 4.7.

  • How does CVE-2018-19044 affect the software?

    CVE-2018-19044 affects Keepalived 2.0.8.

  • How can I fix CVE-2018-19044?

    You can fix CVE-2018-19044 by upgrading to Keepalived 2.0.9 or a newer version.

  • Where can I find more information about CVE-2018-19044?

    You can find more information about CVE-2018-19044 at the following references: [Red Hat Advisory](https://access.redhat.com/errata/RHSA-2019:2285), [Bugzilla](https://bugzilla.suse.com/show_bug.cgi?id=1015141), [GitHub commit](https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306).

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