---
title: "CVE-2015-5685\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-2015-5685?format=md
keywords: index, follow
---

# CVE-2015-5685

Publication date 13 August 2015

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The lazy\_bdecode function in BitTorrent DHT bootstrap server (bootstrap-dht
) allows remote attackers to execute arbitrary code via a crafted packet,
related to "improper indexing."

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libtorrent-rasterbar | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Not affected |
| 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Vulnerable |

---

* [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-2015-5685?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 |
| --- | --- |
| libtorrent-rasterbar | * Upstream:   [d9945f6](https://github.com/arvidn/libtorrent/commit/d9945f6f50a8c967888cd9c2ebe65ffbe462056e) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5685)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-5685)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-5685)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-5685)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2015-5685>