# CVE-2018-10911: Deserialization in glusterfs: > An attacker can exploit improper handling of negative key lengths in GlusterFS deserialization to read memory from other locations, potentially exposing sensitive data. - **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 4 Sep 2018 - **Updated:** 5 Aug 2024 - **Also known as:** DEBIAN-CVE-2018-10911, GHSA-x86v-j2gh-g3w6, RHSA-2018:2892, RHSA-2018:3242, UBUNTU-CVE-2018-10911 ## What is CVE-2018-10911? CVE-2018-10911 is a medium-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 4 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim. ### Official 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. Weakness: CWE-502 (Deserialization of Untrusted Data), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), CWE-190 (Integer Overflow or Wraparound) ## Which versions are affected by CVE-2018-10911? It affects 7 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `glusterfs` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-api` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-api-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-cli` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-client-xlators` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-fuse` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-libs` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs-rdma` | Red Hat:enterprise_linux:6::client | All versions | 0:3.12.2-18.el6 | | `glusterfs` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-api` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-api-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-cli` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-client-xlators` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-fuse` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-libs` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs-rdma` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.12.2-18.el6 | | `glusterfs` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-api` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-api-devel` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-cli` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-client-xlators` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-devel` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-fuse` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-libs` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs-rdma` | Red Hat:enterprise_linux:6::server | All versions | 0:3.12.2-18.el6 | | `glusterfs` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-api` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-api-devel` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-cli` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-client-xlators` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-devel` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-fuse` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-libs` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | | `glusterfs-rdma` | Red Hat:enterprise_linux:6::workstation | All versions | 0:3.12.2-18.el6 | Products: Debian Debian Linux, Gluster Glusterfs, Opensuse Leap, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Redhat Virtualization Host. ## How do I fix CVE-2018-10911? Apply the vendor's patch. ## Is CVE-2018-10911 being exploited? There is no known exploitation of CVE-2018-10911 in the wild and no public exploit code. ## Other vulnerabilities in Debian Debian Linux - [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild) - [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild) - [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild) - [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild) - [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2018-10911 and fix it if it is affected. What it is: CVE-2018-10911 is a medium-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 4 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2018-10911 in the wild and no public exploit code. Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2018-10911/ (Markdown: https://insights.sbomify.com/CVE-2018-10911/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2018-10911 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-10911 - OSV: https://osv.dev/vulnerability/CVE-2018-10911 --- From sbomify Insights: https://insights.sbomify.com/CVE-2018-10911/ Summaries are generated and may contain mistakes; the official description above is the record.