CVE-2016-8637: dracut_project dracut
Vulnerability summary
CVE-2016-8637 is a high (CVSS 7.8) vulnerability in dracut_project dracut. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.2% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 01-08-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA5.0MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
0.00 pp
From 0.31% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (bugzilla.redhat.com)
Maturity: unknown
Exploit Reference (seclists.org)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-732Incorrect Permission Assignment for Critical ResourceThe product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected systems
Suse8 products
- dracut&distro=SUSE Linux Enterprise Desktop 12 SP1< 037-91.1
- dracut&distro=SUSE Linux Enterprise Desktop 12 SP2< 044-108.1
- dracut&distro=SUSE Linux Enterprise Server 12 SP1< 037-91.1
- dracut&distro=SUSE Linux Enterprise Server 12 SP2< 044-108.1
- dracut&distro=SUSE Linux Enterprise Server 12-LTSS< 037-51.31.1
Debian1 product
- dracut< 044+189-1
Dracut_project1 product
- dracut< 045
Mageia1 product
- dracut< 038-21.1.mga5
The dracut project1 product
- dracut045
Ubuntu1 product
- dracut< 044+3-3ubuntu0.1~esm1
6 vendors · 13 products
References
32 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8637X Refsource CONFIRMExploitIssue TrackingThird Party Advisory
- github.com/dracutdevs/dracut/commit/0db98910a11c12a454eac4c8e86dc7a7bbc764a4X Refsource CONFIRMPatchThird Party Advisory
Show all 32 references
- bugzilla.suse.com/986734REPORT
- bugzilla.suse.com/986838REPORT
- bugzilla.suse.com/902375REPORT
- bugzilla.suse.com/935320REPORT
- bugzilla.suse.com/959803REPORT