The make include files in NetBSD before 1.6.2, as used in pmake 1.111 and other products, allow local users to overwrite arbitrary files via a symlink attack on a /tmp/_depend##### temporary file, related to (1) bsd.lib.mk and (2) bsd.prog.mk.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-1920
• https://bugzilla.redhat.com/show_bug.cgi?id=705090
• https://bugzilla.redhat.com/show_bug.cgi?id=705100
• https://exchange.xforce.ibmcloud.com/vulnerabilities/67495
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626673
• http://cvsweb.netbsd.org/bsdweb.cgi/src/share/mk/bsd.lib.mk.diff?r1=1.239&r2=1.240&f=h
• http://cvsweb.netbsd.org/bsdweb.cgi/src/share/mk/bsd.prog.mk.diff?r1=1.192&r2=1.193&f=h
• http://openwall.com/lists/oss-security/2011/05/16/2
• http://openwall.com/lists/oss-security/2011/05/16/8
• http://www.securityfocus.com/bid/47878