# CVE-2017-7308: Integer overflow in n/a > Local attackers can exploit an integer signedness error in the Linux kernel packet socket implementation to cause denial of service or escalate privileges. - **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 29 Mar 2017 - **Updated:** 5 Aug 2024 - **Also known as:** DEBIAN-CVE-2017-7308, GHSA-ppq3-433v-jp43, SUSE-SU-2017:1278-1, SUSE-SU-2017:1285-1, SUSE-SU-2017:1287-1, SUSE-SU-2017:1291-1, SUSE-SU-2017:1299-1, SUSE-SU-2017:1300-1, SUSE-SU-2017:1302-1, UBUNTU-CVE-2017-7308, USN-3256-1, USN-3256-2 ## What is CVE-2017-7308? CVE-2017-7308 is a high-severity vulnerability in Linux kernel, published on 29 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls. Weakness: CWE-787 (Out-of-bounds Write), CWE-681 (Incorrect Conversion between Numeric Types) ## Which versions are affected by CVE-2017-7308? It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `kgraft-patch-SLE12_Update_13` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 9-2.1 | | `kgraft-patch-SLE12_Update_14` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 9-2.1 | | `kgraft-patch-SLE12_Update_15` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 9-2.1 | | `kgraft-patch-SLE12_Update_16` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 6-2.1 | | `kgraft-patch-SLE12_Update_17` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 5-2.1 | | `kgraft-patch-SLE12_Update_18` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 5-2.1 | | `kgraft-patch-SLE12_Update_19` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 4-2.1 | | `kgraft-patch-SLE12_Update_13` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 9-2.1 | | `kgraft-patch-SLE12_Update_14` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 9-2.1 | | `kgraft-patch-SLE12_Update_15` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 9-2.1 | | `kgraft-patch-SLE12_Update_16` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 6-2.1 | | `kgraft-patch-SLE12_Update_17` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 5-2.1 | | `kgraft-patch-SLE12_Update_18` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 5-2.1 | | `kgraft-patch-SLE12_Update_19` | SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 4-2.1 | Products: Linux kernel. ## How do I fix CVE-2017-7308? Apply the vendor's patch. ## Is CVE-2017-7308 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-7308 exists. Public exploit code: - AF_PACKET packet_set_ring Privilege Escalation (metasploit) - Linux Kernel 4.8.0-41-generic (Ubuntu) - Packet Socket Local Privilege Escalation (exploitdb) - Linux 4.8.0 < 4.8.0-46 - AF_PACKET packet_set_ring Privilege Escalation (Metasploit) (exploitdb) - Linux 4.8.0 < 4.8.0-46 - AF_PACKET packet_set_ring Privilege Escalation (Metasploit) (exploitdb) - Linux Kernel 4.8.0-34 < 4.8.0-45 (Ubuntu / Linux Mint) - Packet Socket Local Privilege Escalation (exploitdb) - CVE-2017-7308 POC (github_poc): https://github.com/anldori/CVE-2017-7308 ## Other vulnerabilities in Linux kernel - [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild) - [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild) - [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild) - [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild) - [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2017-7308 and fix it if it is affected. What it is: CVE-2017-7308 is a high-severity vulnerability in Linux kernel, published on 29 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-7308 exists. Affected product: Linux kernel. 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-2017-7308/ (Markdown: https://insights.sbomify.com/CVE-2017-7308/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2017-7308 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-7308 - OSV: https://osv.dev/vulnerability/CVE-2017-7308 --- From sbomify Insights: https://insights.sbomify.com/CVE-2017-7308/ Summaries are generated and may contain mistakes; the official description above is the record.