---
title: "CVE-2013-1624\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-2013-1624?format=md
keywords: index, follow
---

# CVE-2013-1624

Publication date 8 February 2013

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

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## Description

The TLS implementation in the Bouncy Castle Java library before 1.48 and C#
library before 1.8 does not properly consider timing side-channel attacks
on a noncompliant MAC check operation during the processing of malformed
CBC padding, which allows remote attackers to conduct distinguishing
attacks and plaintext-recovery attacks via statistical analysis of timing
data for crafted packets, a related issue to CVE-2013-0169.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-1624?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| bouncycastle | 17.04 zesty | Not affected |
| 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Not affected |
| 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 | Not affected |
| 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 | Ignored end of life |
| 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-2013-1624?format=md#patch-details)

## Notes

---

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

list of commits may be incomplete

---

### [seth-arnold](https://launchpad.net/~seth-arnold)

I read all diffs in crypto/tls/ directory since Lucky 13 patches,
the two listed here were the only ones that looked related to this problem,
the other updates were mostly for style fixes.

---

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

no reverse depends in main in precise+

### 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 |
| --- | --- |
| bouncycastle | * Upstream:   <http://www.bouncycastle.org/viewcvs/viewcvs.cgi/java/crypto/src/org/bouncycastle/crypto/tls/TlsBlockCipher.java?r1=1.13&r2=1.14> * Upstream:   <http://www.bouncycastle.org/viewcvs/viewcvs.cgi/java/crypto/src/org/bouncycastle/crypto/tls/TlsMac.java?r1=1.10&r2=1.11> * Upstream:   <http://www.bouncycastle.org/viewcvs/viewcvs.cgi/java/crypto/src/org/bouncycastle/util/Arrays.java?r1=1.18&r2=1.19&> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1624)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-1624)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-1624)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-1624)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2013-1624>