# CVE-2009-1376: Integer overflow in n/a

> Remote attackers can execute arbitrary code via malformed MSN messages due to integer overflows in Pidgin's protocol handler.

- **Severity:** Critical 9.3 (`AV:N/AC:M/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:** Not needed
- **Fix available:** Yes
- **Published:** 26 May 2009
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2009-1376, GHSA-p33h-j5pj-5f6r

## What is CVE-2009-1376?

CVE-2009-1376 is a critical vulnerability in Pidgin Pidgin, published on 26 May 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol handler in (1) libpurple/protocols/msn/slplink.c and (2) libpurple/protocols/msnp9/slplink.c in Pidgin (formerly Gaim) before 2.5.6 on 32-bit platforms allow remote attackers to execute arbitrary code via a malformed SLP message with a crafted offset value, leading to buffer overflows.  NOTE: this issue exists because of an incomplete fix for CVE-2008-2927.

Weakness: CWE-189

## Which versions are affected by CVE-2009-1376?

It affects 1 product.


Products: Pidgin Pidgin.

## How do I fix CVE-2009-1376?

Upgrade to a fixed version.

## Is CVE-2009-1376 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1376 exists.

Public exploit code:

- Pidgin MSN 2.5.8 - Remote Code Execution (exploitdb)

## Other vulnerabilities in Pidgin Pidgin

- [CVE-2013-6490](https://insights.sbomify.com/CVE-2013-6490/): Memory corruption in n/a (critical 10.0)
- [CVE-2016-1000030](https://insights.sbomify.com/CVE-2016-1000030/): Code injection in n/a (critical 9.8)
- [CVE-2013-6486](https://insights.sbomify.com/CVE-2013-6486/): Command injection in n/a (critical 9.3)
- [CVE-2011-3185](https://insights.sbomify.com/CVE-2011-3185/): Command injection in n/a (critical 9.3)
- [CVE-2007-3841](https://insights.sbomify.com/CVE-2007-3841/): Command injection in n/a (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-1376 and fix it if it is affected.

What it is: CVE-2009-1376 is a critical vulnerability in Pidgin Pidgin, published on 26 May 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1376 exists.

Affected product: Pidgin Pidgin. 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-2009-1376/ (Markdown: https://insights.sbomify.com/CVE-2009-1376/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-1376
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-1376
- OSV: https://osv.dev/vulnerability/CVE-2009-1376

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From sbomify Insights: https://insights.sbomify.com/CVE-2009-1376/
Summaries are generated and may contain mistakes; the official description above is the record.