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Fencer Intel
medium 6.5

CVE-2018-10911 json

A flaw was found in the way dic_unserialize function of glusterfs does not handle negative key length values.

published 8y ago modified 4mo ago also EUVD-2018-2967

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

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.

Patch / fix

  • gluster glusterfs 3.12.14, 4.1.8
  • glusterfs Debian 14, Debian 13, Debian 12 4.1.4-1

debian advisories DEBIAN-CVE-2018-10911

  • glusterfs Ubuntu Pro 14.04 LTS 3.4.2-1ubuntu1+esm1
  • glusterfs Ubuntu Pro 16.04 LTS 3.7.6-1ubuntu1+esm1
  • glusterfs Ubuntu Pro 18.04 LTS 3.13.2-1ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2018-10911

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • imgbased RHEL 7 1.0.29-1.el7ev
  • python-imgbased RHEL 7 1.0.29-1.el7ev
  • redhat-virtualization-host RHEL 7 4.2-20181026.0.el7_6
  • redhat-release-virtualization-host RHEL 7 4.2-7.3.el7
  • redhat-virtualization-host-image-update RHEL 7 4.2-20181026.0.el7_6
  • redhat-virtualization-host-image-update-placeholder RHEL 7 4.2-7.3.el7
  • glusterfs storage 3, RHEL 7 3.12.2-18.el7
  • glusterfs-api storage 3, RHEL 7 3.12.2-18.el7

red hat advisories RHSA-2018:3470RHSA-2018:3242RHSA-2018:2892RHSA-2018:2607RHSA-2018:2608

  • glusterfs openSUSE Leap 15.1 3.12.15-lp151.3.3.1

opensuse advisories openSUSE-SU-2020:0079-1

Is CVE-2018-10911 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-10911 updated cvss 6.5

glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory

  • Red Hat Enterprise Linux Client (v. 7) glusterfs 3.12.2-18.el7, glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-client-xlators 3.12.2-18.el7 Red Hat Enterprise Linux Client Optional (v. 7) glusterfs-rdma 3.12.2-18.el7, python2-gluster 3.12.2-18.el7 Red Hat Enterprise Linux ComputeNode (v. 7) glusterfs 3.12.2-18.el7, glusterfs-api 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-rdma 3.12.2-18.el7, glusterfs-client-xlators 3.12.2-18.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) glusterfs-cli 3.12.2-18.el7, python2-gluster 3.12.2-18.el7
    fixed: vendor fix RHSA-2018:3242
  • Red Hat Enterprise Linux Desktop (v. 6) glusterfs 3.12.2-18.el6, glusterfs-api 3.12.2-18.el6, glusterfs-fuse 3.12.2-18.el6, glusterfs-libs 3.12.2-18.el6, glusterfs-client-xlators 3.12.2-18.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) glusterfs-cli 3.12.2-18.el6, glusterfs-rdma 3.12.2-18.el6
    fixed: vendor fix RHSA-2018:2892
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) glusterfs 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-rdma 3.12.2-18.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, python2-gluster 3.12.2-18.el7, glusterfs-client-xlators 3.12.2-18.el7
    fixed: vendor fix RHSA-2018:3242
  • Red Hat Enterprise Linux HPC Node (v. 6) glusterfs 3.12.2-18.el6, glusterfs-api 3.12.2-18.el6, glusterfs-fuse 3.12.2-18.el6, glusterfs-libs 3.12.2-18.el6, glusterfs-rdma 3.12.2-18.el6, glusterfs-client-xlators 3.12.2-18.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) glusterfs-cli 3.12.2-18.el6 Red Hat Enterprise Linux Server (v. 6) glusterfs 3.12.2-18.el6, glusterfs-api 3.12.2-18.el6, glusterfs-fuse 3.12.2-18.el6, glusterfs-libs 3.12.2-18.el6, glusterfs-rdma 3.12.2-18.el6, glusterfs-client-xlators 3.12.2-18.el6
    fixed: vendor fix RHSA-2018:2892
  • Red Hat Enterprise Linux Server (v. 7) glusterfs 3.12.2-18.el7, glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-rdma 3.12.2-18.el7, +1 more
    fixed: vendor fix RHSA-2018:3242
  • Red Hat Enterprise Linux Server Optional (v. 6) glusterfs-cli 3.12.2-18.el6
    fixed: vendor fix RHSA-2018:2892
  • Red Hat Enterprise Linux Server Optional (v. 7) glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, python2-gluster 3.12.2-18.el7, glusterfs-client-xlators 3.12.2-18.el7
    fixed: vendor fix RHSA-2018:3242
  • Red Hat Enterprise Linux Workstation (v. 6) glusterfs 3.12.2-18.el6, glusterfs-api 3.12.2-18.el6, glusterfs-fuse 3.12.2-18.el6, glusterfs-libs 3.12.2-18.el6, glusterfs-rdma 3.12.2-18.el6, glusterfs-client-xlators 3.12.2-18.el6
    fixed: vendor fix RHSA-2018:2892
show 11 more
  • Red Hat Enterprise Linux Workstation (v. 7) glusterfs 3.12.2-18.el7, glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-rdma 3.12.2-18.el7, +1 more
    fixed: vendor fix RHSA-2018:3242
  • Red Hat Enterprise Linux Workstation Optional (v. 6) glusterfs-cli 3.12.2-18.el6
    fixed: vendor fix RHSA-2018:2892
  • Red Hat Enterprise Linux Workstation Optional (v. 7) python2-gluster 3.12.2-18.el7
    fixed: vendor fix RHSA-2018:3242
  • Red Hat Gluster Storage Server 3.4 on RHEL-6 glusterfs 3.12.2-18.el6rhs, glusterfs-api 3.12.2-18.el6rhs, glusterfs-cli 3.12.2-18.el6rhs, glusterfs-fuse 3.12.2-18.el6rhs, glusterfs-libs 3.12.2-18.el6rhs, glusterfs-rdma 3.12.2-18.el6rhs, +8 more
    fixed: vendor fix RHSA-2018:2608
  • Red Hat Gluster Storage Server 3.4 on RHEL-7 glusterfs 3.12.2-18.el7rhgs, glusterfs-api 3.12.2-18.el7rhgs, glusterfs-cli 3.12.2-18.el7rhgs, glusterfs-fuse 3.12.2-18.el7rhgs, glusterfs-libs 3.12.2-18.el7rhgs, glusterfs-rdma 3.12.2-18.el7rhgs, +9 more
    fixed: vendor fix RHSA-2018:2607
  • Red Hat Storage Native Client for Red Hat Enterprise Linux 6 glusterfs 3.12.2-18.el6, glusterfs-api 3.12.2-18.el6, glusterfs-cli 3.12.2-18.el6, glusterfs-fuse 3.12.2-18.el6, glusterfs-libs 3.12.2-18.el6, glusterfs-rdma 3.12.2-18.el6, +2 more
    fixed: vendor fix RHSA-2018:2608
  • Red Hat Storage Native Client for Red Hat Enterprise Linux 7 glusterfs 3.12.2-18.el7, glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-rdma 3.12.2-18.el7, +2 more
    fixed: vendor fix RHSA-2018:2607
  • Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host 4.2-20181026.0.el7_6, redhat-virtualization-host-image-update 4.2-20181026.0.el7_6
    fixed: vendor fix RHSA-2018:3470
  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts glusterfs 3.12.2-18.el7, glusterfs-api 3.12.2-18.el7, glusterfs-cli 3.12.2-18.el7, glusterfs-fuse 3.12.2-18.el7, glusterfs-libs 3.12.2-18.el7, glusterfs-rdma 3.12.2-18.el7, +1 more
    fixed: vendor fix RHSA-2018:2607
  • Red Hat RHEL 7-based RHEV-H for RHEV 4 (build requirements) imgbased 1.0.29-1.el7ev, python-imgbased 1.0.29-1.el7ev, redhat-release-virtualization-host 4.2-7.3.el7, redhat-virtualization-host-image-update-placeholder 4.2-7.3.el7
    fixed: vendor fix RHSA-2018:3470
  • Red Hat Enterprise Linux 8 glusterfs, glusterfs-api, glusterfs-cli, glusterfs-fuse, glusterfs-libs, glusterfs-rdma, +2 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.87% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Red Hat glusterfs:

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data
  • CWE-190 Integer Overflow or Wraparound
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.