First published: Thu Jun 17 2010(Updated: )
Description of problem: User "foo" can use the SWAPEXT ioctl to swap a write-only file owned by user "bar" into a file owned by "foo" and subsequently reading it. It does so by checking that the file descriptors passed to the ioctl are also opened for reading. References: <a href="http://archives.free.net.ph/message/20100616.130710.301704aa.en.html">http://archives.free.net.ph/message/20100616.130710.301704aa.en.html</a> <a href="http://archives.free.net.ph/message/20100616.135735.40f53a32.en.html">http://archives.free.net.ph/message/20100616.135735.40f53a32.en.html</a>
Credit: secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
debian/linux-2.6 | ||
Linux Linux kernel | <2.6.35 | |
SUSE Linux Enterprise Server | =10-sp3 | |
SUSE Linux Enterprise Desktop | =10-sp3 | |
SUSE Linux Enterprise Software Development Kit | =10-sp3 | |
Debian Debian Linux | =5.0 | |
Canonical Ubuntu Linux | =10.10 | |
Canonical Ubuntu Linux | =9.04 | |
Canonical Ubuntu Linux | =9.10 | |
Canonical Ubuntu Linux | =8.04 | |
Canonical Ubuntu Linux | =10.04 | |
Canonical Ubuntu Linux | =6.06 |
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