Multiple integer overflows in libc in NetBSD 4.x, FreeBSD 6.x and 7.x, and probably other BSD and Apple Mac OS platforms allow context-dependent attackers to execute arbitrary code via large values of certain integer fields in the format argument to (1) the strfmon function in lib/libc/stdlib/strfmon.c, related to the GET_NUMBER macro; and (2) the printf function, related to left_prec and right_prec.

References

• https://nvd.nist.gov/vuln/detail/CVE-2008-1391
• https://exchange.xforce.ibmcloud.com/vulnerabilities/41504
• https://lists.opensuse.org/opensuse-security-announce/2010-10/msg00007.html
• http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/strfmon.c
• http://lists.apple.com/archives/security-announce//2008//Dec/msg00000.html
• http://secunia.com/advisories/29574
• http://secunia.com/advisories/33179
• http://securityreason.com/achievement_securityalert/53
• http://securityreason.com/securityalert/3770
• http://support.apple.com/kb/HT3338
• http://www.debian.org/security/2010/dsa-2058
• http://www.securityfocus.com/archive/1/490158/100/0/threaded
• http://www.securityfocus.com/bid/28479
• http://www.securitytracker.com/id?1019722
• http://www.us-cert.gov/cas/techalerts/TA08-350A.html
• http://www.vupen.com/english/advisories/2008/3444