---
title: "CVE-2011-1554\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-2011-1554?format=md
keywords: index, follow
---

# CVE-2011-1554

Publication date 31 March 2011

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

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## Description

Off-by-one error in t1lib 5.1.2 and earlier, as used in Xpdf before
3.02pl6, teTeX, and other products, allows remote attackers to cause a
denial of service (application crash) via a PDF document containing a
crafted Type 1 font that triggers an invalid memory read, integer overflow,
and invalid pointer dereference, a different vulnerability than
CVE-2011-0764.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-1554?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| t1lib | 11.10 oneiric | Fixed 5.1.2-3ubuntu0.11.10.2 |
| 11.04 natty | Fixed 5.1.2-3ubuntu0.11.04.2 |
| 10.10 maverick | Fixed 5.1.2-3ubuntu0.10.10.2 |
| 10.04 LTS lucid | Fixed 5.1.2-3ubuntu0.10.04.2 |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2011-1554?format=md#patch-details)

## 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

### 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 |
| --- | --- |
| t1lib | * Vendor:   <https://bugzilla.redhat.com/show_bug.cgi?id=692909> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1554)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-1554)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-1554)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-1554)

### Related Ubuntu Security Notices (USN)

+ [USN-1335-1](https://usn.ubuntu.com/USN-1335-1)
+ t1lib vulnerabilities
+ 19 January 2012

### Other references

* <http://www.toucan-system.com/advisories/tssa-2011-01.txt>
* <https://www.cve.org/CVERecord?id=CVE-2011-1554>