---
title: "CVE-2011-0764\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-2011-0764?format=md
keywords: index, follow
---

# CVE-2011-0764

Publication date 31 March 2011

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6, teTeX, and other
products, uses an invalid pointer in conjunction with a dereference
operation, which allows remote attackers to execute arbitrary code via a
crafted Type 1 font in a PDF document, as demonstrated by
testz.2184122398.pdf.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-0764?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| t1lib | 11.10 oneiric | Fixed 5.1.2-3ubuntu0.11.10.1 |
| 11.04 natty | Fixed 5.1.2-3ubuntu0.11.04.1 |
| 10.10 maverick | Fixed 5.1.2-3ubuntu0.10.10.1 |
| 10.04 LTS lucid | Fixed 5.1.2-3ubuntu0.10.04.1 |
| 9.10 karmic | Ignored end of life |
| 8.04 LTS hardy | Ignored end of life |
| 6.06 LTS dapper | 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)

## Notes

---

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

xpdf in natty is now built with the poppler engine
xpdf in earlier releases seems to use system t1lib

---

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

requested reproducers from report on 2011-10-13

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0764)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-0764)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-0764)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-0764)

### Related Ubuntu Security Notices (USN)

+ [USN-1316-1](https://usn.ubuntu.com/USN-1316-1)
+ t1lib vulnerability
+ 21 December 2011

### Other references

* <http://www.toucan-system.com/advisories/tssa-2011-01.txt>
* <https://www.cve.org/CVERecord?id=CVE-2011-0764>