# CVE-2007-1997: Integer overflow in n/a

> Remote attackers can execute arbitrary code via a crafted CHM file exploiting an integer signedness error in ClamAV's CAB extraction functions.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 16 Apr 2007
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2007-1997, GHSA-p592-g5c7-x7w6

## What is CVE-2007-1997?

CVE-2007-1997 is a high-severity vulnerability in Clam Anti-Virus Clamav, published on 16 Apr 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Integer signedness error in the (1) cab_unstore and (2) cab_extract functions in libclamav/cab.c in Clam AntiVirus (ClamAV) before 0.90.2 allow remote attackers to execute arbitrary code via a crafted CHM file that contains a negative integer, which passes a signed comparison and leads to a stack-based buffer overflow.

## Which versions are affected by CVE-2007-1997?

It affects 1 product.


Products: Clam Anti-Virus Clamav.

## How do I fix CVE-2007-1997?

Upgrade to a fixed version.

## Is CVE-2007-1997 being exploited?

There is no known exploitation of CVE-2007-1997 in the wild and no public exploit code.

## Other vulnerabilities in Clam Anti-Virus Clamav

- [CVE-2008-1100](https://insights.sbomify.com/CVE-2008-1100/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-0318](https://insights.sbomify.com/CVE-2008-0318/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-6337](https://insights.sbomify.com/CVE-2007-6337/): Unspecified vulnerability in the bzip2 decompression algorithm in nsis/bzlib_private.h in ClamAV before 0.92 has unknown impact and remote attack vectors. (critical 10.0)
- [CVE-2007-3023](https://insights.sbomify.com/CVE-2007-3023/): Memory corruption in n/a (critical 10.0)
- [CVE-2005-3587](https://insights.sbomify.com/CVE-2005-3587/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-1997 and fix it if it is affected.

What it is: CVE-2007-1997 is a high-severity vulnerability in Clam Anti-Virus Clamav, published on 16 Apr 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-1997 in the wild and no public exploit code.

Affected product: Clam Anti-Virus Clamav. 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-2007-1997/ (Markdown: https://insights.sbomify.com/CVE-2007-1997/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-1997
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-1997
- OSV: https://osv.dev/vulnerability/CVE-2007-1997

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-1997/
Summaries are generated and may contain mistakes; the official description above is the record.