# CVE-2017-7657: Critical severity vulnerability that affects org.eclipse.jetty:jetty-server > Integer overflow in chunk parsing allows bypassing intermediary authorization checks in specific Jetty configurations. - **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 26 Jun 2018 - **Updated:** 5 Aug 2024 - **Also known as:** CLEANSTART-2026-ER01200, DEBIAN-CVE-2017-7657, GHSA-vgg8-72f2-qm23, UBUNTU-CVE-2017-7657 ## What is CVE-2017-7657? CVE-2017-7657 is a critical vulnerability in Debian Debian Linux, published on 26 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request. Weakness: CWE-190 (Integer Overflow or Wraparound), CWE-444 (Inconsistent Interpretation of HTTP Requests) ## Which versions are affected by CVE-2017-7657? 4 open source packages ship an affected version, including org.eclipse.jetty:jetty-server. It affects 17 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `org.eclipse.jetty:jetty-server` | Maven | All versions | 9.2.25.v20180606 | | `org.eclipse.jetty:jetty-server` | Maven | All versions | 9.2.25.v20180606 | | `org.eclipse.jetty:jetty-server` | Maven | From 9.3.0 | 9.3.24.v20180605 | | `org.eclipse.jetty:jetty-server` | Maven | From 9.3.0 | 9.3.24.v20180605 | Products: Debian Debian Linux, Eclipse Jetty, Hp Xp P9000 Command View, Netapp E-Series Santricity Management, Netapp E-Series Santricity Os Controller, Netapp E-Series Santricity Web Services, Netapp Element Software, Netapp Element Software Management Node, Netapp Hci Storage Nodes, Netapp Oncommand System Manager, Netapp Oncommand Unified Manager, Netapp Santricity Cloud Connector, Netapp Snap Creator Framework, Netapp Snapcenter, Netapp Snapmanager, Oracle Rest Data Services, Oracle Retail Xstore Point of Service. ## How do I fix CVE-2017-7657? Upgrade org.eclipse.jetty:jetty-server to a fixed version for your release line: 9.2.25.v20180606 or 9.3.24.v20180605. ## Is CVE-2017-7657 being exploited? There is no known exploitation of CVE-2017-7657 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-2017-7657 and fix it if it is affected. What it is: CVE-2017-7657 is a critical vulnerability in Debian Debian Linux, published on 26 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2017-7657 in the wild and no public exploit code. Affected packages and fixed versions: - org.eclipse.jetty:jetty-server (Maven): affected all versions; fixed in 9.2.25.v20180606 - org.eclipse.jetty:jetty-server (Maven): affected all versions; fixed in 9.2.25.v20180606 - org.eclipse.jetty:jetty-server (Maven): affected from 9.3.0; fixed in 9.3.24.v20180605 - org.eclipse.jetty:jetty-server (Maven): affected from 9.3.0; fixed in 9.3.24.v20180605 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-2017-7657/ (Markdown: https://insights.sbomify.com/CVE-2017-7657/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2017-7657 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-7657 - OSV: https://osv.dev/vulnerability/CVE-2017-7657 --- From sbomify Insights: https://insights.sbomify.com/CVE-2017-7657/ Summaries are generated and may contain mistakes; the official description above is the record.