# CVE-2015-8869: Memory corruption in n/a > Remote attackers can trigger buffer overflows or read sensitive memory via improper sign extension handling in the String.copy function. - **Severity:** Critical 9.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** Yes - **Published:** 13 Jun 2016 - **Updated:** 6 Aug 2024 - **Also known as:** DEBIAN-CVE-2015-8869, DLA-466-1, GHSA-3jg5-m986-f428, OSEC-2016-01, RHSA-2016:1296, RHSA-2016:2576, RHSA-2017:0564, RHSA-2017:0565, SUSE-SU-2016:2192-1, SUSE-SU-2016:2194-1, UBUNTU-CVE-2015-8869, USN-3437-1, openSUSE-SU-2024:10222-1 ## What is CVE-2015-8869? CVE-2015-8869 is a critical memory corruption vulnerability in Fedoraproject Fedora, published on 13 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description OCaml before 4.03.0 does not properly handle sign extensions, which allows remote attackers to conduct buffer overflow attacks or obtain sensitive information as demonstrated by a long string to the String.copy function. Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) ## Which versions are affected by CVE-2015-8869? It affects 3 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `libguestfs` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-devel` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-java` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-java-devel` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-javadoc` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-tools` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs-tools-c` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `ocaml` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-camlp4` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-camlp4-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-docs` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-emacs` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-labltk` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-labltk-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-libguestfs` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `ocaml-libguestfs-devel` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `ocaml-ocamldoc` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-runtime` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-source` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `ocaml-x11` | Red Hat:enterprise_linux:6::client | All versions | 0:3.11.2-5.el6 | | `perl-Sys-Guestfs` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `python-libguestfs` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `ruby-libguestfs` | Red Hat:enterprise_linux:6::client | All versions | 1:1.20.11-20.el6 | | `libguestfs` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-java` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-java-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-javadoc` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-tools` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `libguestfs-tools-c` | Red Hat:enterprise_linux:6::computenode | All versions | 1:1.20.11-20.el6 | | `ocaml` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | | `ocaml-camlp4` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | | `ocaml-camlp4-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | | `ocaml-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | | `ocaml-docs` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | | `ocaml-emacs` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | | `ocaml-labltk` | Red Hat:enterprise_linux:6::computenode | All versions | 0:3.11.2-5.el6 | Products: Fedoraproject Fedora, Ocaml Ocaml, Opensuse Opensuse. ## How do I fix CVE-2015-8869? Upgrade to a fixed version. ## Is CVE-2015-8869 being exploited? There is no known exploitation of CVE-2015-8869 in the wild and no public exploit code. ## Other vulnerabilities in Fedoraproject Fedora - [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild) - [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild) - [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild) - [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild) - [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2015-8869 and fix it if it is affected. What it is: CVE-2015-8869 is a critical memory corruption vulnerability in Fedoraproject Fedora, published on 13 Jun 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-2015-8869 in the wild and no public exploit code. Affected product: Fedoraproject Fedora. 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-2015-8869/ (Markdown: https://insights.sbomify.com/CVE-2015-8869/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2015-8869 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-8869 - OSV: https://osv.dev/vulnerability/CVE-2015-8869 --- From sbomify Insights: https://insights.sbomify.com/CVE-2015-8869/ Summaries are generated and may contain mistakes; the official description above is the record.