Multiple BSD systems strfmon() integer overflow
| bsd-strfmon-overflow (41504) |  High Risk |
Description:
Multiple BSD systems are vulnerable to multiple integer overflows, caused by improper bounds checking by the strfmon() function in the libc library. By sending a specially-crafted value containing malicious format specifiers, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the system to crash.
*CVSS:
| Base Score: | 7.5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.9 |
| Exploitability: | Proof-of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
For NetBSD:
Apply the fix, available from the NetBSD CVS Repository. See References.
For Apple Mac OS X:
Apply Security Update 2008-008 or upgrade to the latest version of Mac OS X (10.5.6 or later), available from the Apple Web site. See References.
For other distributions:
Contact your vendor for patch or upgrade information. See References.
References:
- BugTraq Mailing List, Thu Mar 27 2008 - 09:09:49 CDT: [securityreason] *BSD libc (strfmon) Multiple vulnerabilities.
- FreeBSD Web site: FreeBSD.
- GNU Web site: GNU C Library.
- NetBSD CVS Repository: CVS log for src/lib/libc/stdlib/strfmon.c.
- SecurityReason Advisory SecurityAlert : 67: glibc x<=2.10.1 stdio/strfmon.c Multiple Vulnerabilities.
- BID-28479: Multiple BSD Platforms 'strfmon()' Function Integer Overflow Weakness
- BID-36443: GNU glibc 'strfmon()' Function Integer Overflow Weakness
- CVE-2008-1391: 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.
- DSA-2058: eglibc -- multiple vulnerabilities
- MDVSA-2010:111: glibc
- MDVSA-2010:112: glibc
- SA29574: FreeBSD "strfmon()" Multiple Integer Overflows
- SA33179: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1019722: libc strfmon() Integer Overflows May Let Users Execute Arbitrary Code
- SUSE-SA:2010:052: Linux kernel security update
- USN-944-1: GNU C Library vulnerabilities
- VUPEN/ADV-2008-3444: Apple Mac OS X Code Execution and Security Bypass Vulnerabilities
Platforms Affected:
- Apple Mac OS X 10.4.11
- Apple Mac OS X 10.5
- Apple Mac OS X 10.5.1
- Apple Mac OS X 10.5.2
- Apple Mac OS X 10.5.3
- Apple Mac OS X 10.5.4
- Apple Mac OS X 10.5.5
- Apple Mac OS X Server 10.4.11
- Apple Mac OS X Server 10.5
- Apple Mac OS X Server 10.5.1
- Apple Mac OS X Server 10.5.2
- Apple Mac OS X Server 10.5.3
- Apple Mac OS X Server 10.5.4
- Apple Mac OS X Server 10.5.5
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 8.04 LTS
- Debian Debian Linux 5.0
- FreeBSD FreeBSD 6.0
- FreeBSD FreeBSD 7.0
- GNU glibc 2.0
- GNU glibc 2.0.1
- GNU glibc 2.0.2
- GNU glibc 2.0.3
- GNU glibc 2.0.4
- GNU glibc 2.0.5
- GNU glibc 2.0.6
- GNU glibc 2.1
- GNU glibc 2.1.1
- GNU glibc 2.1.1.6
- GNU glibc 2.1.2
- GNU glibc 2.1.3
- GNU Glibc 2.1.3.10
- GNU glibc 2.1.9
- GNU glibc 2.2
- GNU glibc 2.2.1
- GNU glibc 2.2.2
- GNU glibc 2.2.3
- GNU glibc 2.2.4
- GNU glibc 2.2.5
- GNU glibc 2.3
- GNU glibc 2.3.1
- GNU glibc 2.3.10
- MandrakeSoft Mandrake Linux 2008.0
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- MandrakeSoft Mandrake Multi Network Firewall 2.0
- Mandriva Enterprise Server 5
- Mandriva Enterprise Server 5 X86_64
- Mandriva Linux 2009.0
- Mandriva Linux 2009.0 X86_64
- Mandriva Linux 2009.1
- Mandriva Linux 2009.1 X86_64
- Mandriva Linux 2010 X86_64
- Mandriva Linux 2010
- NetBSD NetBSD 4.0
- Novell SLE SDK 10
- Novell SUSE Linux Enterprise Server 10
- SuSE Linux Enterprise Server 9
Reported:
Mar 27, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.