---
title: "CVE-2011-0017\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-2011-0017?format=md
keywords: index, follow
---

# CVE-2011-0017

Publication date 1 February 2011

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

Toggle side navigation

## Description

The open\_log function in log.c in Exim 4.72 and earlier does not check the
return value from (1) setuid or (2) setgid system calls, which allows local
users to append log data to arbitrary files via a symlink attack.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-0017?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| exim4 | 10.10 maverick | Fixed 4.72-1ubuntu1.1 |
| 10.04 LTS lucid | Fixed 4.71-3ubuntu1.1 |
| 9.10 karmic | Fixed 4.69-11ubuntu4.2 |
| 8.04 LTS hardy | Fixed 4.69-2ubuntu0.3 |
| 6.06 LTS dapper | Fixed 4.60-3ubuntu3.3 |

---

* [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-2011-0017?format=md#patch-details)

## Notes

---

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

may have been introduced by fix for CVE-2010-4345...

### 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 |
| --- | --- |
| exim4 | * Upstream:   [1670ef1](http://git.exim.org/exim.git/commit/1670ef10063d7708eb736a482d1ad25b9c59521d) * Upstream:   [3319167](http://git.exim.org/exim.git/commit/33191679e1a86ba6d9c38a74d0795d00c300f2c5) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0017)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-0017)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-0017)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-0017)

### Related Ubuntu Security Notices (USN)

+ [USN-1060-1](https://usn.ubuntu.com/USN-1060-1)
+ Exim vulnerabilities
+ 10 February 2011

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-0017>