---
title: "CVE-2010-1766\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-2010-1766?format=md
keywords: index, follow
---

# CVE-2010-1766

Publication date 22 July 2010

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Off-by-one error in the WebSocketHandshake::readServerHandshake function in
websockets/WebSocketHandshake.cpp in WebCore in WebKit before r56380, as
used in Qt and other products, allows remote websockets servers to cause a
denial of service (memory corruption) or possibly have unspecified other
impact via an upgrade header that is long and invalid.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2010-1766?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| chromium-browser | 11.10 oneiric | Ignored end of life |
| 11.04 natty | Ignored end of life |
| 10.10 maverick | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| 9.10 karmic | Not in release |
| 9.04 jaunty | Not in release |
| 8.04 LTS hardy | Not in release |
| 6.06 LTS dapper | Not in release |
| qt4-x11 | 11.10 oneiric | Not affected |
| 11.04 natty | Not affected |
| 10.10 maverick | Not affected |
| 10.04 LTS lucid | Ignored end of life |
| 9.10 karmic | Ignored end of life |
| 9.04 jaunty | Ignored end of life |
| 8.04 LTS hardy | Not affected |
| 6.06 LTS dapper | Not affected |
| webkit | 11.10 oneiric | Not affected |
| 11.04 natty | Not affected |
| 10.10 maverick | Not affected |
| 10.04 LTS lucid | Not affected |
| 9.10 karmic | Fixed 1.2.5-0ubuntu0.9.10.1 |
| 9.04 jaunty | Ignored end of life |
| 8.04 LTS hardy | Ignored end of life |
| 6.06 LTS dapper | 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-2010-1766?format=md#patch-details)

## Notes

---

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

qt4-x11 unmaintained upstream (see README.webkit for details)
webkit is a fork of khtml from kdelibs. kdelibs5 is farther from
it, while qt4-x11 attempts to unify khtml and webkit.

---

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

webkitkde is a wrapper around qt4-x11's webkit.

### 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 |
| --- | --- |
| webkit | * Upstream:   <http://trac.webkit.org/changeset/56380> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1766)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2010-1766)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2010-1766)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2010-1766)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2010-1766>