OpenBSD and NetBSD systrace_preprepl() integer overflow
| openbsd-systracepreprepl-integer-overflow (29392) |  High Risk |
Description:
OpenBSD and NetBSD are vulnerable to an integer overflow in the systrace_preprepl() function. A local attacker could send a large integer value to the ioctl() syscall to obtain sensitive information, cause a denial of service, or gain elevated privileges.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
For OpenBSD 3.8:
Apply the patch for this vulnerability, as listed in OpenBSD 3.8 errata - 019: SECURITY FIX: October 7, 2006. See References.
For OpenBSD 3.9:
Apply the patch for this vulnerability, as listed in OpenBSD 3.9 errata - 014: SECURITY FIX: October 7, 2006. See References.
For NetBSD:
Refer to NetBSD Security Advisory 2006-024 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- NetBSD-SA2006-024: systrace(4) integer overflow.
- OpenBSD 3.8 errata: 019: SECURITY FIX: October 7, 2006 .
- OpenBSD 3.9 errata: 014: SECURITY FIX: October 7, 2006 .
- BID-20392: OpenBSD Systrace STRIOCREPLACE Local Integer Overflow Vulnerability
- CVE-2006-5218: Integer overflow in the systrace_preprepl function (STRIOCREPLACE) in systrace in OpenBSD 3.9 and NetBSD 3 allows local users to cause a denial of service (crash), gain privileges, or read arbitrary kernel memory via large numeric arguments to the systrace ioctl.
- OSVDB ID: 29570: Multiple BSD systrace systrace_preprepl() Function Overflow
- SA22324: OpenBSD systrace "systrace_preprepl()" Integer Overflow Vulnerability
- SECTRACK ID: 1017009: BSD UNIX systrace STRIOCREPLACE Integer Overflow Lets Local Users Obtain Elevated Privileges
Platforms Affected:
- NetBSD NetBSD 2.0
- NetBSD NetBSD 2.0.1
- NetBSD NetBSD 2.0.2
- NetBSD NetBSD 2.0.3
- NetBSD NetBSD 2.0.4
- NetBSD NetBSD 2.1
- NetBSD NetBSD 3.0
- NetBSD NetBSD 3.0.1
- NetBSD NetBSD 3.0.2
- NetBSD NetBSD CURRENT
- OpenBSD OpenBSD 3.8
- OpenBSD OpenBSD 3.9
Reported:
Oct 07, 2006
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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.