# CVE-2010-4158: Information disclosure in n/a

> Local attackers can read sensitive kernel stack memory via crafted socket filters due to uninitialized memory checks in the Linux kernel.

- **Severity:** Low 2.1 (`AV:L/AC:L/Au:N/C:P/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:** 30 Dec 2010
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-9x53-5f6r-73cq

## What is CVE-2010-4158?

CVE-2010-4158 is a low-severity vulnerability in Fedoraproject Fedora, published on 30 Dec 2010. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.

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

## Which versions are affected by CVE-2010-4158?

It affects 7 products.


Products: Fedoraproject Fedora, Linux kernel, Opensuse Opensuse, Suse Linux Enterprise Desktop, Suse Linux Enterprise Real Time Extension, Suse Linux Enterprise Server, Suse Linux Enterprise Software Development Kit.

## How do I fix CVE-2010-4158?

Upgrade to a fixed version.

## Is CVE-2010-4158 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-4158 exists.

Public exploit code:

- Linux Kernel 2.6.x - 'net/core/filter.c' Local Information Disclosure (exploitdb)

## 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-2010-4158 and fix it if it is affected.

What it is: CVE-2010-4158 is a low-severity vulnerability in Fedoraproject Fedora, published on 30 Dec 2010. 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-2010-4158 exists.

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-2010-4158/ (Markdown: https://insights.sbomify.com/CVE-2010-4158/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-4158
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-4158
- OSV: https://osv.dev/vulnerability/CVE-2010-4158

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-4158/
Summaries are generated and may contain mistakes; the official description above is the record.