Sun Solaris runtime linker ld.so.1(1) LD_PRELOAD buffer overflow
| sun-ldso1-ldpreload-bo (12755) |  High Risk |
Description:
Sun Solaris is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the runtime linker. A local attacker could supply an overly large LD_PRELOAD environment variable to overflow a buffer and execute arbitrary code on the system with root privileges.
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed below. Refer to Sun Alert ID: 55680 for more information. See References.
SPARC:
Solaris 2.6: 107733-11 or later
Solaris 7: 106950-23 or later
Solaris 8: 109147-25 or later
Solaris 9: 112963-09 or later
x86:
Solaris 2.6: 107734-11 or later
Solaris 7: 106951-23 or later
Solaris 8: 109148-25 or later
Solaris 9: 113986-05 or later
References:
- BugTraq Mailing List, Tue Jul 29 2003 - 15:36:18 CDT: Solaris ld.so.1 buffer overflow.
- CIAC Information Bulletin N-131: Sun Solaris Runtime Linker ld.so.1(1) Vulnerability.
- iDEFENSE Security Advisory 07.29.03: Buffer Overflow in Sun Solaris Runtime Linker.
- Sun Alert ID: 55680: Security Vulnerability in the Solaris Runtime Linker ld.so.1(1).
- BID-8305: Sun Solaris Runtime Linker LD_PRELOAD Local Buffer Overflow Vulnerability
- CVE-2003-0609: Stack-based buffer overflow in the runtime linker, ld.so.1, on Solaris 2.6 through 9 allows local users to gain root privileges via a long LD_PRELOAD environment variable.
- OSVDB ID: 8722: Solaris ld.so.1 LD_PRELOAD Variable Local Overflow
Platforms Affected:
- Sun Solaris 2.6
- Sun Solaris 7.0
- Sun Solaris 8
- Sun Solaris 9
Reported:
Jul 29, 2003
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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net