# CVE-2018-19208: Null dereference in n/a > A NULL pointer dereference in libwpd allows attackers to cause a denial of service via a crafted document. - **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** A user has to click or open something - **Fix available:** Yes - **Published:** 12 Nov 2018 - **Updated:** 5 Aug 2024 - **Also known as:** DEBIAN-CVE-2018-19208, GHSA-5xpj-2ffv-fr89, MGASA-2018-0481, RHSA-2019:2126, SUSE-SU-2018:3812-1, SUSE-SU-2018:3812-2, SUSE-SU-2018:3870-1, UBUNTU-CVE-2018-19208 ## What is CVE-2018-19208? CVE-2018-19208 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 12 Nov 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. ### Official description In libwpd 0.10.2, there is a NULL pointer dereference in the function WP6ContentListener::defineTable in WP6ContentListener.cpp that will lead to a denial of service attack. This is related to WPXTable.h. Weakness: CWE-476 (NULL Pointer Dereference) ## Which versions are affected by CVE-2018-19208? It affects 3 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `libwpd` | Red Hat:enterprise_linux:7::client | All versions | 0:0.10.0-2.el7 | | `libwpd-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 0:0.10.0-2.el7 | | `libwpd-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:0.10.0-2.el7 | | `libwpd-doc` | Red Hat:enterprise_linux:7::client | All versions | 0:0.10.0-2.el7 | | `libwpd-tools` | Red Hat:enterprise_linux:7::client | All versions | 0:0.10.0-2.el7 | | `libwpd` | Red Hat:enterprise_linux:7::computenode | All versions | 0:0.10.0-2.el7 | | `libwpd-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 0:0.10.0-2.el7 | | `libwpd-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:0.10.0-2.el7 | | `libwpd-doc` | Red Hat:enterprise_linux:7::computenode | All versions | 0:0.10.0-2.el7 | | `libwpd-tools` | Red Hat:enterprise_linux:7::computenode | All versions | 0:0.10.0-2.el7 | | `libwpd` | Red Hat:enterprise_linux:7::server | All versions | 0:0.10.0-2.el7 | | `libwpd-debuginfo` | Red Hat:enterprise_linux:7::server | All versions | 0:0.10.0-2.el7 | | `libwpd-devel` | Red Hat:enterprise_linux:7::server | All versions | 0:0.10.0-2.el7 | | `libwpd-doc` | Red Hat:enterprise_linux:7::server | All versions | 0:0.10.0-2.el7 | | `libwpd-tools` | Red Hat:enterprise_linux:7::server | All versions | 0:0.10.0-2.el7 | | `libwpd` | Red Hat:enterprise_linux:7::workstation | All versions | 0:0.10.0-2.el7 | | `libwpd-debuginfo` | Red Hat:enterprise_linux:7::workstation | All versions | 0:0.10.0-2.el7 | | `libwpd-devel` | Red Hat:enterprise_linux:7::workstation | All versions | 0:0.10.0-2.el7 | | `libwpd-doc` | Red Hat:enterprise_linux:7::workstation | All versions | 0:0.10.0-2.el7 | | `libwpd-tools` | Red Hat:enterprise_linux:7::workstation | All versions | 0:0.10.0-2.el7 | | `libwpd` | SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 0.10.2-2.7.1 | | `libwpd` | SUSE:Linux Enterprise Desktop 12 SP4 | All versions | 0.10.2-2.7.1 | | `libwpd` | SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 0.10.2-2.7.1 | | `libwpd` | SUSE:Linux Enterprise Software Development Kit 12 SP4 | All versions | 0.10.2-2.7.1 | | `libwpd` | SUSE:Linux Enterprise Workstation Extension 12 SP3 | All versions | 0.10.2-2.7.1 | | `libwpd` | SUSE:Linux Enterprise Workstation Extension 12 SP4 | All versions | 0.10.2-2.7.1 | | `libwpd` | SUSE:Linux Enterprise Workstation Extension 15 | All versions | 0.10.2-3.3.1 | Products: Libwpd Project Libwpd, Redhat Enterprise Linux, Suse Suse Linux Enterprise Server. ## How do I fix CVE-2018-19208? Apply the vendor's patch. ## Is CVE-2018-19208 being exploited? There is no known exploitation of CVE-2018-19208 in the wild and no public exploit code. ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2018-19208 and fix it if it is affected. What it is: CVE-2018-19208 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 12 Nov 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. Exploitation: There is no known exploitation of CVE-2018-19208 in the wild and no public exploit code. Affected product: Redhat Enterprise 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-2018-19208/ (Markdown: https://insights.sbomify.com/CVE-2018-19208/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2018-19208 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-19208 - OSV: https://osv.dev/vulnerability/CVE-2018-19208 --- From sbomify Insights: https://insights.sbomify.com/CVE-2018-19208/ Summaries are generated and may contain mistakes; the official description above is the record.