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CVE-2018-14615

21
FAUCET Score

CVE-2018-14615 describes a buffer overflow vulnerability in the Linux kernel, specifically within the truncate_inline_inode() function of the F2FS filesystem, affecting versions up to 4.17.10. This flaw occurs when unmounting an F2FS image due to a negative length value, potentially leading to a denial of service. Rated Medium with a CVSS score of 5.5, the vulnerability requires local access and user interaction (unmounting a malicious F2FS image) to trigger, resulting in high availability impact but no confidentiality or integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.17.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 91st percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-14615Low

kernel: Buffer overflow in fs/f2fs/inline.c:truncate_inline_inode() when unmounting a crafted f2fs image

Jul 5, 2018

References

bugzilla.kernel.org / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
usn.ubuntu.com / 4094-1
usn.ubuntu.com / 4118-1
securityfocus.com / bid/104917
Third Party AdvisoryVDB Entry