# CVE-2023-2203: Use after free in WebKitGTK > Attackers can trigger a use-after-free via crafted web content, leading to arbitrary code execution or denial of service in applications using WebKitGTK. - **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`) - **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:** 17 May 2023 - **Updated:** 22 Jan 2025 - **Also known as:** GHSA-p2w5-xch3-v6pv, RHSA-2023:2653, RHSA-2023:3108, RLSA-2023:3108, UBUNTU-CVE-2023-2203 ## What is CVE-2023-2203? CVE-2023-2203 is a high-severity use after free vulnerability in Redhat Enterprise Linux, published on 17 May 2023. Any signed-in user can exploit it over the network, with no action from the victim. ### Official description A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. This flaw allows attackers with network access to pass specially crafted web content files, causing a denial of service or arbitrary code execution. This CVE exists because of a CVE-2023-28205 security regression for the WebKitGTK package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2. Weakness: CWE-416 (Use After Free) ## Which versions are affected by CVE-2023-2203? It affects 5 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `webkit2gtk3` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-devel-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-jsc` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-jsc-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-jsc-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3-jsc-devel-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.38.5-1.el8_8.3 | | `webkit2gtk3` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-debugsource` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-devel` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-devel-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-jsc` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-jsc-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-jsc-devel` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3-jsc-devel-debuginfo` | Red Hat:enterprise_linux:9::appstream | All versions | 0:2.38.5-1.el9_2.1 | | `webkit2gtk3` | Rocky Linux:8 | All versions | 0:2.38.5-1.el8_8.3 | Products: Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus, Webkitgtk Webkit2gtk3. ## How do I fix CVE-2023-2203? Apply the vendor's patch. ## Is CVE-2023-2203 being exploited? There is no known exploitation of CVE-2023-2203 in the wild and no public exploit code. ## Other vulnerabilities in Redhat Enterprise Linux - [CVE-2018-14667](https://insights.sbomify.com/CVE-2018-14667/): Red Hat JBoss RichFaces Framework Expression Language Injection (critical 9.8, exploited in the wild) - [CVE-2021-20325](https://insights.sbomify.com/CVE-2021-20325/): Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit (critical 9.8) - [CVE-2018-25011](https://insights.sbomify.com/CVE-2018-25011/): Memory corruption in libwebp (critical 9.8) - [CVE-2018-25014](https://insights.sbomify.com/CVE-2018-25014/): Other in libwebp (critical 9.8) - [CVE-2014-3585](https://insights.sbomify.com/CVE-2014-3585/): Supply chain in redhat-upgrade-tool (critical 9.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-2203 and fix it if it is affected. What it is: CVE-2023-2203 is a high-severity use after free vulnerability in Redhat Enterprise Linux, published on 17 May 2023. Any signed-in user can exploit it over the network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2023-2203 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-2023-2203/ (Markdown: https://insights.sbomify.com/CVE-2023-2203/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2203 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2203 - OSV: https://osv.dev/vulnerability/CVE-2023-2203 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-2203/ Summaries are generated and may contain mistakes; the official description above is the record.