High severity · published Aug 1, 2018
CVE-2016-8637
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…
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DR
dracut · The Dracut Project
045 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-8637
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-8637
Exploit
http://seclists.org/oss-sec/2016/q4/352
Third Party Advisory
http://www.securityfocus.com/bid/94128
Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8637
Patch
https://github.com/dracutdevs/dracut/commit/0db98910a11c12a454eac4c8e86dc7a7bbc764a4
