# CVE-2008-4113: Information disclosure in n/a

> Local attackers can read sensitive kernel memory via crafted SCTP IOCTL requests when the SCTP-AUTH extension is enabled.

- **Severity:** Medium 4.7 (`AV:L/AC:M/Au:N/C:C/I:N/A:N`)
- **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:** 16 Sep 2008
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-6px2-f4fc-3m96

## What is CVE-2008-4113?

CVE-2008-4113 is a medium-severity vulnerability in Linux kernel, published on 16 Sep 2008. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The sctp_getsockopt_hmac_ident function in net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel before 2.6.26.4, when the SCTP-AUTH extension is enabled, relies on an untrusted length value to limit copying of data from kernel memory, which allows local users to obtain sensitive information via a crafted SCTP_HMAC_IDENT IOCTL request involving the sctp_getsockopt function.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2008-4113?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2008-4113?

Upgrade to a fixed version.

## Is CVE-2008-4113 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-4113 exists.

Public exploit code:

- Linux Kernel < 2.6.26.4 - SCTP Kernel Memory Disclosure (exploitdb)

## 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-2008-4113 and fix it if it is affected.

What it is: CVE-2008-4113 is a medium-severity vulnerability in Linux kernel, published on 16 Sep 2008. 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-2008-4113 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-2008-4113/ (Markdown: https://insights.sbomify.com/CVE-2008-4113/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-4113
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-4113
- OSV: https://osv.dev/vulnerability/CVE-2008-4113

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-4113/
Summaries are generated and may contain mistakes; the official description above is the record.