---
title: "CVE-2012-2131\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-2012-2131?format=md
keywords: index, follow
---

# CVE-2012-2131

Publication date 24 April 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL
0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause
a denial of service (memory corruption) or possibly have unspecified other
impact, via crafted DER data, as demonstrated by an X.509 certificate or an
RSA public key. NOTE: this vulnerability exists because of an incomplete
fix for CVE-2012-2110.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-2131?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| openssl | 11.10 oneiric | Not affected |
| 11.04 natty | Fixed 0.9.8o-5ubuntu1.5 |
| 10.04 LTS lucid | Fixed 0.9.8k-7ubuntu8.11 |
| 8.04 LTS hardy | Fixed 0.9.8g-4ubuntu3.18 |
| openssl098 | 11.10 oneiric | Fixed 0.9.8o-7ubuntu1.2 |
| 11.04 natty | Not in release |
| 10.04 LTS lucid | Not in release |
| 8.04 LTS hardy | Not in release |

---

* [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-2012-2131?format=md#patch-details)

## Notes

---

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

1.0.x not affected by CVE-2012-2131
all releases also have second patch to fix incorrect error code
introduced in the fix for CVE-2012-2110

### 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 |
| --- | --- |
| openssl | * Upstream:   <http://cvs.openssl.org/chngview?cn=22479> * Upstream:   <http://cvs.openssl.org/chngview?cn=22476> * Upstream:   <http://cvs.openssl.org/chngview?cn=22475> * Upstream:   <http://cvs.openssl.org/chngview?cn=22474> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2131)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-2131)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-2131)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-2131)

### Related Ubuntu Security Notices (USN)

+ [USN-1428-1](https://usn.ubuntu.com/USN-1428-1)
+ OpenSSL vulnerability
+ 24 April 2012

### Other references

* <http://marc.info/?l=openssl-dev&m=133525318514423&w=2>
* <https://www.cve.org/CVERecord?id=CVE-2012-2131>