---
title: "CVE-2013-1621\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-2013-1621?format=md
keywords: index, follow
---

# CVE-2013-1621

Publication date 8 February 2013

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Array index error in the SSL module in PolarSSL before 1.2.5 might allow
remote attackers to cause a denial of service via vectors involving a
crafted padding-length value during validation of CBC padding in a TLS
session, a different vulnerability than CVE-2013-0169.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| mbedtls | 17.04 zesty | Not affected |
| 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Not affected |
| 15.10 wily | Not in release |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Not in release |
| polarssl | 17.04 zesty | Not in release |
| 16.10 yakkety | Not in release |
| 16.04 LTS xenial | Not in release |
| 15.10 wily | Not affected |
| 15.04 vivid | Ignored end of life |
| 14.10 utopic | Ignored end of life |
| 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 | Ignored end of life |
| 11.10 oneiric | Ignored end of life |
| 10.04 LTS lucid | Fixed 0.12.1-1squeeze1build0.10.04.1 |
| 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-2013-1621?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 |
| --- | --- |
| polarssl | * Vendor:   <http://www.debian.org/security/2013/dsa-2622> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1621)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-1621)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-1621)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-1621)

### Other references

* <http://www.isg.rhul.ac.uk/tls/TLStiming.pdf>
* <http://openwall.com/lists/oss-security/2013/02/05/24>
* <https://www.cve.org/CVERecord?id=CVE-2013-1621>