# CVE-2011-2662: Integer overflow in n/a

> Remote attackers can execute arbitrary code via a crafted email attachment exploiting an integer signedness error in the GroupWise Internet Agent.

- **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:** No
- **Published:** 8 Oct 2011
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-6p6c-pgvv-x7q4

## What is CVE-2011-2662?

CVE-2011-2662 is a critical vulnerability in Novell Groupwise, published on 8 Oct 2011. 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

Integer signedness error in GroupWise Internet Agent (GWIA) in Novell GroupWise 8.0 before HP3 allows remote attackers to execute arbitrary code via a negative BYWEEKNO property in a weekly RRULE variable in a VCALENDAR attachment in an e-mail message.

Weakness: CWE-189

## Which versions are affected by CVE-2011-2662?

It affects 1 product.


Products: Novell Groupwise.

## How do I fix CVE-2011-2662?

No fix has been published for CVE-2011-2662 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-2662 being exploited?

There is no known exploitation of CVE-2011-2662 in the wild and no public exploit code.

## Other vulnerabilities in Novell Groupwise

- [CVE-2014-0610](https://insights.sbomify.com/CVE-2014-0610/): Memory corruption in n/a (critical 10.0)
- [CVE-2013-0804](https://insights.sbomify.com/CVE-2013-0804/): Memory corruption in n/a (critical 10.0)
- [CVE-2012-0417](https://insights.sbomify.com/CVE-2012-0417/): Integer overflow in n/a (critical 10.0)
- [CVE-2012-0271](https://insights.sbomify.com/CVE-2012-0271/): Integer overflow in n/a (critical 10.0)
- [CVE-2011-0333](https://insights.sbomify.com/CVE-2011-0333/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-2662 and fix it if it is affected.

What it is: CVE-2011-2662 is a critical vulnerability in Novell Groupwise, published on 8 Oct 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2011-2662 in the wild and no public exploit code.

Affected product: Novell Groupwise. 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-2011-2662/ (Markdown: https://insights.sbomify.com/CVE-2011-2662/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-2662
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-2662
- OSV: https://osv.dev/vulnerability/CVE-2011-2662

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From sbomify Insights: https://insights.sbomify.com/CVE-2011-2662/
Summaries are generated and may contain mistakes; the official description above is the record.