# CVE-2016-5104: Auth bypass in n/a > Remote attackers can bypass access restrictions to communicate with iOS device services via IPv4 TCP sockets in libimobiledevice and libusbmuxd. - **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`) - **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-2016-5104, DLA-2121-1, DLA-2122-1, GHSA-v8rh-c9vm-p8g7, MGASA-2016-0229, SUSE-SU-2016:1639-1, UBUNTU-CVE-2016-5104, USN-3026-1, USN-3026-2, openSUSE-SU-2024:10373-1 ## What is CVE-2016-5104? CVE-2016-5104 is a medium-severity authentication bypass vulnerability in Canonical Ubuntu Linux, published on 13 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description The socket_create function in common/socket.c in libimobiledevice and libusbmuxd allows remote attackers to bypass intended access restrictions and communicate with services on iOS devices by connecting to an IPv4 TCP socket. Weakness: CWE-284 (Improper Access Control) ## Which versions are affected by CVE-2016-5104? It affects 5 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `libimobiledevice` | SUSE:Linux Enterprise Desktop 12 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Desktop 12 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Desktop 12 SP1 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Desktop 12 SP1 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Server 12 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Server 12 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Server 12 SP1 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Server 12 SP1 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Software Development Kit 12 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Software Development Kit 12 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Software Development Kit 12 SP1 | All versions | 1.1.5-6.1 | | `usbmuxd` | SUSE:Linux Enterprise Software Development Kit 12 SP1 | All versions | 1.0.8-12.1 | | `libimobiledevice` | SUSE:Linux Enterprise Workstation Extension 12 | All versions | 1.1.5-6.1 | | `libimobiledevice` | SUSE:Linux Enterprise Workstation Extension 12 SP1 | All versions | 1.1.5-6.1 | Products: Canonical Ubuntu Linux, Libimobiledevice Libimobiledevice, Libimobiledevice Libusbmuxd, Opensuse Leap, Opensuse Opensuse. ## How do I fix CVE-2016-5104? Apply the vendor's patch. ## Is CVE-2016-5104 being exploited? There is no known exploitation of CVE-2016-5104 in the wild and no public exploit code. ## Other vulnerabilities in Canonical Ubuntu Linux - [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild) - [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild) - [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild) - [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild) - [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2016-5104 and fix it if it is affected. What it is: CVE-2016-5104 is a medium-severity authentication bypass vulnerability in Canonical Ubuntu Linux, 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-2016-5104 in the wild and no public exploit code. Affected product: Canonical Ubuntu 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-2016-5104/ (Markdown: https://insights.sbomify.com/CVE-2016-5104/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2016-5104 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-5104 - OSV: https://osv.dev/vulnerability/CVE-2016-5104 --- From sbomify Insights: https://insights.sbomify.com/CVE-2016-5104/ Summaries are generated and may contain mistakes; the official description above is the record.