National Cyber Awareness System
Vulnerability Summary for CVE-2008-1391
Original release date:03/27/2008
Last revised:03/08/2011
Source:
US-CERT/NIST
Overview
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.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
Official Statement from Red Hat (09/24/2009)
Red Hat does not consider this to be a security issue. Properly written application should not use arbitrary untrusted data as part of the format string passed to functions as strfmon or printf family functions.
References to Advisories, Solutions, and Tools
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US-CERT Technical Alert: TA08-350A
Name: TA08-350A
External Source: VUPEN
Name: ADV-2008-3444
External Source: DEBIAN
Name: DSA-2058
External Source: CONFIRM
Name: http://support.apple.com/kb/HT3338
External Source: SREASON
Name: 3770
External Source: SREASONRES
Name: 20080325 *BSD libc (strfmon) Multiple vulnerabilities
External Source: SECUNIA
Name: 33179
External Source: APPLE
Name: APPLE-SA-2008-12-15
External Source: XF
Name: bsd-strfmon-overflow(41504)
External Source: SECTRACK
Name: 1019722
External Source: BID
Name: 28479
External Source: BUGTRAQ
Name: 20080327 [securityreason] *BSD libc (strfmon) Multiple vulnerabilities
External Source: SECUNIA
Name: 29574
