---
title: "CVE-2012-1820\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-2012-1820?format=md
keywords: index, follow
---

# CVE-2012-1820

Publication date 13 June 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The bgp\_capability\_orf function in bgpd in Quagga 0.99.20.1 and earlier
allows remote attackers to cause a denial of service (assertion failure and
daemon exit) by leveraging a BGP peering relationship and sending a
malformed Outbound Route Filtering (ORF) capability TLV in an OPEN message.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| quagga | 12.04 LTS precise | Fixed 0.99.20.1-0ubuntu0.12.04.3 |
| 11.10 oneiric | Fixed 0.99.20.1-0ubuntu0.11.10.3 |
| 11.04 natty | Fixed 0.99.20.1-0ubuntu0.11.04.3 |
| 10.04 LTS lucid | Fixed 0.99.20.1-0ubuntu0.10.04.3 |
| 8.04 LTS hardy | 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-2012-1820?format=md#patch-details)

### 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 | * Upstream:   [790d1e2](https://github.com/Quagga-RE/quagga-RE/commit/790d1e263e8800bc49d0038d481591ecb4e37b88) * Vendor:   <http://www.debian.org/security/2012/dsa-2497> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1820)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-1820)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-1820)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-1820)

### Related Ubuntu Security Notices (USN)

+ [USN-1605-1](https://usn.ubuntu.com/USN-1605-1)
+ Quagga vulnerability
+ 11 October 2012

### Other references

* <http://www.kb.cert.org/vuls/id/962587>
* <https://www.cve.org/CVERecord?id=CVE-2012-1820>