# CVE-2004-1095: Integer overflow in n/a

> Remote attackers can execute arbitrary code via crafted image headers causing integer overflows in the zgv image viewer.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 1 Dec 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-4j57-jr5f-ppvg

## What is CVE-2004-1095?

CVE-2004-1095 is a critical vulnerability in Debian Debian Linux, published on 1 Dec 2004. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Multiple integer overflows in (1) readbmp.c, (2) readgif.c, (3) readgif.c, (4) readmrf.c, (5) readpcx.c, (6) readpng.c,(7) readpnm.c, (8) readprf.c, (9) readtiff.c, (10) readxbm.c, (11) readxpm.c in zgv 5.8 allow remote attackers to execute arbitrary code via certain image headers that cause calculations to be overflowed and small buffers to be allocated, leading to buffer overflows.  NOTE: CVE-2004-0994 and CVE-2004-1095 identify sets of bugs that only partially overlap, despite having the same developer.  Therefore, they should be regarded as distinct.

## Which versions are affected by CVE-2004-1095?

It affects 3 products.


Products: Debian Debian Linux, Zgv Xzgv Image Viewer, Zgv Zgv Image Viewer.

## How do I fix CVE-2004-1095?

Upgrade to a fixed version.

## Is CVE-2004-1095 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-1095 exists.

Public exploit code:

- zgv 5.5 - Multiple Arbitrary Code Executions (exploitdb)

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-1095 and fix it if it is affected.

What it is: CVE-2004-1095 is a critical vulnerability in Debian Debian Linux, published on 1 Dec 2004. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-1095 exists.

Affected product: Debian Debian 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-2004-1095/ (Markdown: https://insights.sbomify.com/CVE-2004-1095/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-1095
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-1095
- OSV: https://osv.dev/vulnerability/CVE-2004-1095

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-1095/
Summaries are generated and may contain mistakes; the official description above is the record.