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CVE-2018-17182

37
FAUCET Score

CVE-2018-17182 is a use-after-free vulnerability in the Linux kernel (through 4.18.8), specifically within the vmacache_flush_all function, affecting products from Canonical, Debian, Linux, and NetApp. This flaw, rated High severity (CVSS 7.8), allows a local attacker with low privileges to trigger the vulnerability through specific memory management operations, potentially leading to privilege escalation. While not actively exploited in the wild (no KEV entry), a public exploit (EDB-45497) exists, and the vulnerability has garnered significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.16, < 3.16.58CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 3.18.123CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.19, < 4.4.157CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.9.128CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.71CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.21%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-45497 · Sep 26, 2018
This CVE's current EPSS score of 0.0321 is in the 97th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.2.2.el7a
View patch

Vendor Advisories (1)

redhatCVE-2018-17182Important

kernel: Use-after-free in the vmacache_flush_all function resulting in a possible privilege escalation

Sep 13, 2018

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchThird Party Advisory
access.redhat.com / errata/RHSA-2018:3656
Third Party Advisory
github.com / torvalds/linux/commit/7a9cdebdcc17e426fb5287e4a82db1dfe86339b2
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00003.html
Third Party Advisory
security.netapp.com / advisory/ntap-20190204-0001
PatchThird Party Advisory
usn.ubuntu.com / 3776-1
Third Party Advisory
usn.ubuntu.com / 3776-2
Third Party Advisory
usn.ubuntu.com / 3777-1
Third Party Advisory
usn.ubuntu.com / 3777-2
Third Party Advisory
usn.ubuntu.com / 3777-3
Third Party Advisory
debian.org / security/2018/dsa-4308
Third Party Advisory
exploit-db.com / exploits/45497
ExploitThird Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2018/09/18/4
Mailing ListThird Party Advisory
securityfocus.com / bid/105417
Third Party AdvisoryVDB Entry
securityfocus.com / bid/106503
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041748
PatchThird Party AdvisoryVDB Entry