---
title: "CVE-2011-1778\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-2011-1778?format=md
keywords: index, follow
---

# CVE-2011-1778

Publication date 2 December 2011

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Buffer overflow in libarchive through 2.8.5 allows remote attackers to
cause a denial of service (application crash) or possibly execute arbitrary
code via a crafted TAR archive.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libarchive | 11.10 oneiric | Fixed 2.8.4-1ubuntu0.11.10.1 |
| 11.04 natty | Fixed 2.8.4-1ubuntu0.11.04.1 |
| 10.10 maverick | Fixed 2.8.4-1ubuntu0.10.10.1 |
| 10.04 LTS lucid | Fixed 2.8.0-2ubuntu0.1 |
| 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-2011-1778?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 |
| --- | --- |
| libarchive | * Upstream:   <http://code.google.com/p/libarchive/source/detail?r=3160> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1778)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-1778)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-1778)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-1778)

### Related Ubuntu Security Notices (USN)

+ [USN-1310-1](https://usn.ubuntu.com/USN-1310-1)
+ libarchive vulnerabilities
+ 19 December 2011

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-1778>
