dracut.sh in dracut, as used in Red Hat Enterprise Linux 6, Fedora 16 and 17, and possibly other products, creates initramfs images with world-readable permissions, which might allow local users to obtain sensitive information.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-4453
• https://bugzilla.redhat.com/show_bug.cgi?id=859448
• https://exchange.xforce.ibmcloud.com/vulnerabilities/79258
• http://git.kernel.org/?p=boot/dracut/dracut.git;a=commit;h=e1b48995c26c4f06d1a71
• http://rhn.redhat.com/errata/RHSA-2013-1674.html
• http://www.openwall.com/lists/oss-security/2012/09/27/3
• http://www.openwall.com/lists/oss-security/2012/09/27/4
• http://www.openwall.com/lists/oss-security/2012/09/27/6
• http://www.securityfocus.com/bid/55713
• http://git.kernel.org/?p=boot/dracut/dracut.git%3Ba=commit%3Bh=e1b48995c26c4f06d1a71