Information Exposure Affecting dracut package, versions <044+189-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Jun 2018
- disclosed1 Aug 2018
Introduced: 27 Jun 2018
CVE-2016-8637 (opens in a new tab)How to fix?
Upgrade Debian:unstable dracut to version 044+189-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dracut package and not the dracut package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
A local information disclosure issue was found in dracut before 045 when generating initramfs images with world-readable permissions when 'early cpio' is used, such as when including microcode updates. Local attacker can use this to obtain sensitive information from these files, such as encryption keys or credentials.
References
- https://security-tracker.debian.org/tracker/CVE-2016-8637
- https://github.com/dracutdevs/dracut/commit/0db98910a11c12a454eac4c8e86dc7a7bbc764a4
- http://seclists.org/oss-sec/2016/q4/352
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8637
- http://www.securityfocus.com/bid/94128
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-8637