---
title: "CVE-2013-2236\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2013-2236?format=md
keywords: index, follow
---

# CVE-2013-2236

Publication date 23 October 2013

Last updated 24 July 2024

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

Stack-based buffer overflow in the new\_msg\_lsa\_change\_notify function in
the OSPFD API (ospf\_api.c) in Quagga before 0.99.22.2, when
--enable-opaque-lsa and the -a command line option are used, allows remote
attackers to cause a denial of service (crash) via a large LSA.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-2236?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| quagga | 15.10 wily | Not affected |
| 15.04 vivid | Not affected |
| 14.10 utopic | Not affected |
| 14.04 LTS trusty | Not in release |
| 13.10 saucy | Ignored end of life |
| 13.04 raring | Ignored end of life |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Fixed 0.99.20.1-0ubuntu0.12.04.4 |
| 10.04 LTS lucid | Ignored end of life |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2013-2236?format=md#patch-details)

## Notes

---

### [jdstrand](https://launchpad.net/~jdstrand)

requires --enable-opaque-lsa during the build (true for Ubuntu
10.04 LTS and higher)
also requires starting ospfd with '-a'. ospfd is not enabled by
default and the configuration in /etc/quagga/debian.conf does not include
'-a'. Per upstream, normal protection measures (eg, packet filtering,
listening on internal network, etc) would prevent this. Furthermore, it is
difficult to exploit. Considering the above, downgrading to 'low'

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| quagga | * Proposed:   <http://lists.quagga.net/pipermail/quagga-dev/2013-July/010625.html> * Upstream:   <http://lists.quagga.net/pipermail/quagga-dev/2013-July/010639.html> * Vendor:   <http://www.debian.org/security/2013/dsa-2803> * Upstream:   <http://git.savannah.gnu.org/gitweb/?p=quagga.git;a=commit;h=c51443f4aa6b7f0b0d6ad5409ad7d4b215092443> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2236)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-2236)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-2236)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-2236)

### Related Ubuntu Security Notices (USN)

+ [USN-2941-1](https://usn.ubuntu.com/USN-2941-1)
+ Quagga vulnerabilities
+ 24 March 2016

### Other references

* <http://lists.quagga.net/pipermail/quagga-dev/2013-July/010621.html>
* <https://www.cve.org/CVERecord?id=CVE-2013-2236>