# CVE-2015-5516: Denial of service in n/a > Remote attackers can cause denial of service via memory consumption by sending crafted UDP packets to F5 BIG-IP devices. - **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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:** Not needed - **Fix available:** No - **Published:** 20 Jan 2016 - **Updated:** 6 Aug 2024 - **Also known as:** GHSA-7pf4-6p49-f85p ## What is CVE-2015-5516? CVE-2015-5516 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 20 Jan 2016. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description Memory leak in the last hop kernel module in F5 BIG-IP LTM, GTM, and Link Controller 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.x before HF6, BIG-IP AAM 11.4.x, 11.5.x before 11.5.3 HF2 and 11.6.0 before HF6, BIG-IP AFM and PEM 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP Analytics 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP APM and ASM 10.1.0 through 10.2.4, 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP Edge Gateway, WebAccelerator, and WOM 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, and 11.3.0, BIG-IP PSM 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, 11.3.x, and 11.4.x before 11.4.1 HF, Enterprise Manager 3.0.0 through 3.1.1, BIG-IQ Cloud and Security 4.0.0 through 4.5.0, BIG-IQ Device 4.2.0 through 4.5.0, and BIG-IQ ADC 4.5.0 might allow remote attackers to cause a denial of service (memory consumption) via a large number of crafted UDP packets. Weakness: CWE-399 ## Which versions are affected by CVE-2015-5516? It affects 18 products. Products: F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Edge Gateway, F5 Big-Ip Enterprise Manager, F5 Big-Ip Global Traffic Manager, F5 Big-Ip Link Controller, F5 Big-Ip Local Traffic Manager, F5 Big-Ip Policy Enforcement Manager, F5 Big-Ip Protocol Security Module, F5 Big-Ip Wan Optimization Manager, F5 Big-Ip Webaccelerator, F5 Big-Iq Application Delivery Controller, F5 Big-Iq Cloud, F5 Big-Iq Device, F5 Big-Iq Security. ## How do I fix CVE-2015-5516? No fix has been published for CVE-2015-5516 yet. Limit exposure of the affected software until one is available. ## Is CVE-2015-5516 being exploited? There is no known exploitation of CVE-2015-5516 in the wild and no public exploit code. ## Other vulnerabilities in F5 Big-Ip Access Policy Manager - [CVE-2023-46747](https://insights.sbomify.com/CVE-2023-46747/): F5 BIG-IP Configuration Utility Authentication Bypass (critical 9.8, exploited in the wild) - [CVE-2022-1388](https://insights.sbomify.com/CVE-2022-1388/): F5 BIG-IP Missing Authentication (critical 9.8, exploited in the wild) - [CVE-2021-22986](https://insights.sbomify.com/CVE-2021-22986/): F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution (critical 9.8, exploited in the wild) - [CVE-2021-22991](https://insights.sbomify.com/CVE-2021-22991/): F5 BIG-IP Traffic Management Microkernel Buffer Overflow (critical 9.8, exploited in the wild) - [CVE-2020-5902](https://insights.sbomify.com/CVE-2020-5902/): F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2015-5516 and fix it if it is affected. What it is: CVE-2015-5516 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 20 Jan 2016. 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-2015-5516 in the wild and no public exploit code. Affected product: F5 Big-Ip Access Policy Manager. 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-2015-5516/ (Markdown: https://insights.sbomify.com/CVE-2015-5516/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2015-5516 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-5516 - OSV: https://osv.dev/vulnerability/CVE-2015-5516 --- From sbomify Insights: https://insights.sbomify.com/CVE-2015-5516/ Summaries are generated and may contain mistakes; the official description above is the record.