glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory
Published Sep 4, 2018
7.5
HIGHCVSS 3.1
EPSS 3.07%
Description
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.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Red Hat | Glusterfs: | n/a |
|
Configuration 1
Configuration 2
- 4.0
- 6.0
- 7.0
- 6.0
- 7.0
- 6.0
- 7.0
Configuration 3
- 8.0
- 9.0
No data.
Native Client for RHEL 6 for Red Hat Storage
glusterfs-0:3.12.2-18.el6
Fixed · RHSA-2018:2608
Native Client for RHEL 7 for Red Hat Storage
glusterfs-0:3.12.2-18.el7
Fixed · RHSA-2018:2607
Red Hat Enterprise Linux 6
glusterfs-0:3.12.2-18.el6
Fixed · RHSA-2018:2892
Red Hat Enterprise Linux 7
glusterfs-0:3.12.2-18.el7
Fixed · RHSA-2018:3242
Red Hat Gluster Storage 3.4 for RHEL 6
glusterfs-0:3.12.2-18.el6rhs
Fixed · RHSA-2018:2608
Red Hat Gluster Storage 3.4 for RHEL 6
redhat-release-server-0:6Server-6.10.0.24.el6rhs
Fixed · RHSA-2018:2608
Red Hat Gluster Storage 3.4 for RHEL 6
redhat-storage-server-0:3.4.0.0-1.el6rhs
Fixed · RHSA-2018:2608
Red Hat Gluster Storage 3.4 for RHEL 7
glusterfs-0:3.12.2-18.el7rhgs
Fixed · RHSA-2018:2607
Red Hat Gluster Storage 3.4 for RHEL 7
redhat-release-server-0:7.5-11.el7rhgs
Fixed · RHSA-2018:2607
Red Hat Gluster Storage 3.4 for RHEL 7
redhat-storage-server-0:3.4.0.0-1.el7rhgs
Fixed · RHSA-2018:2607
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
glusterfs-0:3.12.2-18.el7
Fixed · RHSA-2018:2607
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
imgbased-0:1.0.29-1.el7ev
Fixed · RHSA-2018:3470
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
redhat-release-virtualization-host-0:4.2-7.3.el7
Fixed · RHSA-2018:3470
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
redhat-virtualization-host-0:4.2-20181026.0.el7_6
Fixed · RHSA-2018:3470
Red Hat Enterprise Linux 8
glusterfs
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Native Client for RHEL 6 for Red Hat Storage | glusterfs-0:3.12.2-18.el6 | Fixed | RHSA-2018:2608 |
| Native Client for RHEL 7 for Red Hat Storage | glusterfs-0:3.12.2-18.el7 | Fixed | RHSA-2018:2607 |
| Red Hat Enterprise Linux 6 | glusterfs-0:3.12.2-18.el6 | Fixed | RHSA-2018:2892 |
| Red Hat Enterprise Linux 7 | glusterfs-0:3.12.2-18.el7 | Fixed | RHSA-2018:3242 |
| Red Hat Gluster Storage 3.4 for RHEL 6 | glusterfs-0:3.12.2-18.el6rhs | Fixed | RHSA-2018:2608 |
| Red Hat Gluster Storage 3.4 for RHEL 6 | redhat-release-server-0:6Server-6.10.0.24.el6rhs | Fixed | RHSA-2018:2608 |
| Red Hat Gluster Storage 3.4 for RHEL 6 | redhat-storage-server-0:3.4.0.0-1.el6rhs | Fixed | RHSA-2018:2608 |
| Red Hat Gluster Storage 3.4 for RHEL 7 | glusterfs-0:3.12.2-18.el7rhgs | Fixed | RHSA-2018:2607 |
| Red Hat Gluster Storage 3.4 for RHEL 7 | redhat-release-server-0:7.5-11.el7rhgs | Fixed | RHSA-2018:2607 |
| Red Hat Gluster Storage 3.4 for RHEL 7 | redhat-storage-server-0:3.4.0.0-1.el7rhgs | Fixed | RHSA-2018:2607 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | glusterfs-0:3.12.2-18.el7 | Fixed | RHSA-2018:2607 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | imgbased-0:1.0.29-1.el7ev | Fixed | RHSA-2018:3470 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | redhat-release-virtualization-host-0:4.2-7.3.el7 | Fixed | RHSA-2018:3470 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | redhat-virtualization-host-0:4.2-20181026.0.el7_6 | Fixed | RHSA-2018:3470 |
| Red Hat Enterprise Linux 8 | glusterfs | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.07% (0.03071) | 87.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.07% (0.03071) | 85.89th | v5 (v2026.06.15) |
| Jan 27, 2026 | 4.55% (0.04553) | 88.89th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.31% (0.03315) | 86.03th | v4 (v2025.03.14) |
| Jun 20, 2025 | 4.62% (0.04624) | 88.78th | v4 (v2025.03.14) |
| Apr 23, 2025 | 5.66% (0.05660) | 89.84th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.39% (0.04391) | 87.93th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.08% (0.12082) | 89.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.39% (0.04391) | 88.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.30% (0.00302) | 70.42th | v3 (v2023.03.01) |
| Jun 19, 2024 | 0.43% (0.00428) | 74.51th | v3 (v2023.03.01) |
| Mar 30, 2024 | 0.61% (0.00607) | 78.17th | v3 (v2023.03.01) |
| Mar 6, 2024 | 0.43% (0.00428) | 73.86th | v3 (v2023.03.01) |
| Jan 26, 2024 | 0.51% (0.00508) | 74.07th | v3 (v2023.03.01) |
| Jan 4, 2024 | 0.71% (0.00708) | 78.29th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.50% (0.00500) | 73.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.78% (0.00781) | 78.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.48% (0.02476) | 54.92th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.27% (0.02273) | 0.00th | v1 |
References (15)
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00035.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2607 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2608 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2892 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3242 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3470 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-10911 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1601657 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10911 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00021.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-10911
- https://review.gluster.org/#/c/glusterfs/+/21067/ x_refsource_CONFIRMPatchVendor Advisory
- https://security.gentoo.org/glsa/201904-06 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-10911
Change history (0)
No recorded changes yet.