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Re: CVE-2008-2931 kernel: missing check before setting mount propagation
From: Eugene Teo <eteo () redhat com>
Date: Tue, 08 Jul 2008 19:30:02 +0800
Eugene Teo wrote:
The do_change_type routine in the Linux kernel has a missing check for capable(CAP_SYS_ADMIN). Even though the mount command restricts the changing of mountpoint type to only root users, it is possible for local unprivileged users to bypass and abuse this problem. More details can be found at: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2008-2931 This affects kernel versions from 2.6.15-rc1 up to 2.6.22-rc1. The
Correction: It should be up to 2.6.21. Thanks, Eugene -- Eugene Teo / Red Hat Security Response Team
Current thread:
- CVE-2008-2931 kernel: missing check before setting mount propagation Eugene Teo (Jul 08)
- Re: CVE-2008-2931 kernel: missing check before setting mount propagation Eugene Teo (Jul 08)