# CVE-2011-1583: Integer overflow in n/a

> Local attackers can cause denial of service or execute arbitrary code via a crafted paravirtualised guest kernel image exploiting integer overflows in Xen.

- **Severity:** Medium 6.9 (`AV:L/AC:M/Au:N/C:C/I:C/A:C`)
- **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:** 12 Aug 2011
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-1583, GHSA-4qc2-w83m-rm23

## What is CVE-2011-1583?

CVE-2011-1583 is a medium-severity vulnerability in n/a, published on 12 Aug 2011. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local users to cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image that triggers (1) a buffer overflow during a decompression loop or (2) an out-of-bounds read in the loader involving unspecified length fields.

Weakness: CWE-189

## Which versions are affected by CVE-2011-1583?

It affects 1 product.


Products: Citrix Xen.

## How do I fix CVE-2011-1583?

Apply the vendor's patch.

## Is CVE-2011-1583 being exploited?

There is no known exploitation of CVE-2011-1583 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2011-1898](https://insights.sbomify.com/CVE-2011-1898/): Privilege escalation in n/a (high 7.4)
- [CVE-2008-5716](https://insights.sbomify.com/CVE-2008-5716/): Missing authorization in n/a (high 7.2)
- [CVE-2008-4405](https://insights.sbomify.com/CVE-2008-4405/): Missing authorization in n/a (high 7.2)
- [CVE-2010-4255](https://insights.sbomify.com/CVE-2010-4255/): Denial of service in n/a (medium 6.1)
- [CVE-2010-4238](https://insights.sbomify.com/CVE-2010-4238/): Denial of service in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-1583 and fix it if it is affected.

What it is: CVE-2011-1583 is a medium-severity vulnerability in n/a, published on 12 Aug 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-1583 in the wild and no public exploit code.

Affected product: n/a. 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-2011-1583/ (Markdown: https://insights.sbomify.com/CVE-2011-1583/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-1583
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-1583
- OSV: https://osv.dev/vulnerability/CVE-2011-1583

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-1583/
Summaries are generated and may contain mistakes; the official description above is the record.