CVE-2015-3255
First published: Wed Jul 22 2015(Updated: )
It was reported that if polkit, while reading action descriptions from /usr/share/polkit-1/actions, encounters a duplicate action ID, it corrupts the heap. The effects of corruption are e.g. visible on stderr as frequent use of unrelated strings when running polkit without --no-debug. Presumably a local attacker might be able to manipulate polkit’s heap enough to achieve privilege escalation through this. Upstream bug: <a href="https://bugs.freedesktop.org/show_bug.cgi?id=83590">https://bugs.freedesktop.org/show_bug.cgi?id=83590</a> Upstream patch is attached.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Polkit Project Polkit | <=0.112 | |
| debian/policykit-1 | 0.105-31+deb11u1 122-3 125-2 |
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Reference Links
- http://www.securitytracker.com/id/1035023
- https://security.gentoo.org/glsa/201611-07
- https://usn.ubuntu.com/3717-2/
- http://lists.freedesktop.org/archives/polkit-devel/2015-July/000432.html
- https://bugs.freedesktop.org/show_bug.cgi?id=83590
- https://bugzilla.redhat.com/show_bug.cgi?id=1245673
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00010.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00042.html
- https://launchpad.net/bugs/cve/CVE-2015-3255
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1054865
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1054865&action=edit
- http://cgit.freedesktop.org/polkit/commit/?id=9f5e0c731784003bd4d6fc75ab739ff8b2ea269f
- https://security-tracker.debian.org/tracker/CVE-2015-3255
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3255
- https://nvd.nist.gov/vuln/detail/CVE-2015-3255
- https://ubuntu.com/security/CVE-2015-3255
Frequently Asked Questions
What is CVE-2015-3255?
CVE-2015-3255 is a vulnerability in PolicyKit that might allow local users to gain privileges via duplicate action IDs in action descriptions.
What is the severity of CVE-2015-3255?
CVE-2015-3255 has a severity level of medium with a CVSS score of 4.6.
How does CVE-2015-3255 affect Red Hat Polkit?
Red Hat Polkit versions up to and including 0.112 are affected by CVE-2015-3255.
How can I fix the CVE-2015-3255 vulnerability in Ubuntu's policykit-1 package?
To fix the CVE-2015-3255 vulnerability in Ubuntu's policykit-1 package, update to version 0.105-11ubuntu1 or a higher version.
Where can I find more information about CVE-2015-3255?
You can find more information about CVE-2015-3255 at the following references: [SecurityTracker](http://www.securitytracker.com/id/1035023), [Gentoo GLSA](https://security.gentoo.org/glsa/201611-07), [Ubuntu USN](https://usn.ubuntu.com/3717-2/).
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