Debian Security Advisory
DLA-869-1 cgiemail -- LTS security update
- Date Reported:
- 24 Mar 2017
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 852031.
In Mitre's CVE dictionary: CVE-2017-5613, CVE-2017-5614, CVE-2017-5615, CVE-2017-5616.
- More information:
The cPanel Security Team discovered several security vulnerabilities in cgiemail, a CGI program used to create HTML forms for sending mails:
A format string injection vulnerability allowed to supply arbitrary format strings to cgiemail and cgiecho. A local attacker with permissions to provide a cgiemail template could use this vulnerability to execute code as webserver user. Format strings in cgiemail tempaltes are now restricted to simple %s, %U and %H sequences.
An open redirect vulnerability in cgiemail and cgiecho binaries could be exploited by a local attacker to force redirect to an arbitrary URL. These redirects are now limited to the domain that handled the request.
A vulnerability in cgiemail and cgiecho binaries allowed injection of additional HTTP headers. Newline characters are now stripped from the redirect location to protect against this.
Missing escaping of the addendum parameter lead to a reflected cross-site (XSS) vulnerability in cgiemail and cgiecho binaries. The output is now html escaped.
For Debian 7
Wheezy, these problems have been fixed in version 1.6-37+deb7u1.
We recommend that you upgrade your cgiemail packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS