Ubuntu Security Notice USN-1801-1
15th April, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Applications using libcurl could be made to expose sensitive information over the network.
- curl - HTTP, HTTPS, and FTP client and client libraries
YAMADA Yasuharu discovered that libcurl was vulnerable to a cookie
leak when doing requests across domains with matching tails. curl did
not properly restrict cookies to domains and subdomains. If a user or
automated system were tricked into processing a specially crafted URL,
an attacker could read cookie values stored by unrelated webservers.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- curl 7.27.0-1ubuntu1.2
- libcurl3 7.27.0-1ubuntu1.2
- Ubuntu 12.04 LTS:
- curl 7.22.0-3ubuntu4.1
- libcurl3 7.22.0-3ubuntu4.1
- Ubuntu 11.10:
- curl 7.21.6-3ubuntu3.3
- libcurl3 7.21.6-3ubuntu3.3
- Ubuntu 10.04 LTS:
- curl 7.19.7-1ubuntu1.2
- libcurl3 7.19.7-1ubuntu1.2
- Ubuntu 8.04 LTS:
- curl 7.18.0-1ubuntu2.4
- libcurl3 7.18.0-1ubuntu2.4
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.