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CVE-2018-13099

21
FAUCET Score

CVE-2018-13099 is a denial-of-service vulnerability affecting the Linux kernel (through version 4.4) in the f2fs filesystem component, specifically impacting Canonical, Debian, and openSUSE distributions. This medium-severity flaw (CVSS 5.5) can be triggered by a user opening a specially crafted f2fs image, leading to an out-of-bounds memory access and system crash. While the attack complexity is low, it requires user interaction to exploit. There is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, and community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
42.3CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
2.50%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0250 is in the 92nd 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

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-2018-13099Low

kernel: out-of-bounds memory access in fs/f2fs/inline.c

Jun 22, 2018

References

lists.opensuse.org / opensuse-security-announce/2018-10/msg00033.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
Third Party AdvisoryVDB Entry
bugzilla.kernel.org / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/tip/tip.git/commit
Mailing ListPatchVendor Advisory
git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
Mailing ListPatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00003.html
Mailing ListThird Party Advisory
seclists.org / bugtraq/2018/Oct/4
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Jan/52
Mailing ListPatchThird Party Advisory
sourceforge.net / p/linux-f2fs/mailman/message/36356878
PatchThird Party Advisory
usn.ubuntu.com / 3932-1
Third Party Advisory
usn.ubuntu.com / 3932-2
Third Party Advisory
usn.ubuntu.com / 4094-1
Third Party Advisory
usn.ubuntu.com / 4118-1
Third Party Advisory
debian.org / security/2018/dsa-4308
Third Party Advisory
securityfocus.com / bid/104680
Broken Link