CVE-2018-10911

A flaw was found in the way dic_unserialize function of glusterfs does not handle negative key length values. An attacker could use this flaw to read memory from other locations into the stored dict value.

Published: 2018-09-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-10911 is rated Moderate Risk (60.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.33%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-10911

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-21 4.55% 4.33% -0.22%
2 2026-01-27 4.26% 4.55% +0.29%
3 2025-11-21 — 4.26% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-10911

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2018-10911

OS Trackers for CVE-2018-10911

vendor priority summary link
debian not yet assigned CVE-2018-10911 not yet assigned priority: Debian including 1 source packages (glusterfs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-10911
gentoo normal CVE-2018-10911: 1 GLSA(s) (201904-06), 1 atom(s) (sys-cluster/glusterfs); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-10911
redhat medium — https://access.redhat.com/security/cve/CVE-2018-10911
suse medium CVE-2018-10911 severity moderate: SUSE including 28 source package names (glusterfs-3.12.15-lp151.3.3.1, glusterfs-3.12.2-18.el7, …), 28 product×package rows across 3 product lines (SUSE Liberty Linux 7, openSUSE Leap 15.1, openSUSE Tumbleweed): Fixed 28. https://www.suse.com/security/cve/CVE-2018-10911/
ubuntu medium CVE-2018-10911 medium priority: Ubuntu including 1 source packages (glusterfs), 14 status rows across 14 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 9, released 3, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2018-10911

Affected software / configurations for CVE-2018-10911

Vendor Product Version Raw CPE
gluster glusterfs >= 3.12.0, < 3.12.14 cpe:2.3:a:gluster:glusterfs:*:*:*:*:*:*:*:*
gluster glusterfs >= 4.1.0, < 4.1.8 cpe:2.3:a:gluster:glusterfs:*:*:*:*:*:*:*:*
redhat virtualization_host 4.0 cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

References for CVE-2018-10911

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00035.html Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2607 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2608 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2892 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3242 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3470 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10911 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00021.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html Mailing List Third Party Advisory
https://review.gluster.org/#/c/glusterfs/+/21067/ Patch Vendor Advisory
https://security.gentoo.org/glsa/201904-06 Third Party Advisory
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