FreeBSD PT_LWPINFO ptrace denial of service
| freebsd-ptlwpinfo-ptrace-dos (29476) |  Low Risk |
Description:
FreeBSD is vulnerable to a denial of service caused by a signedness error in the PT_LWPINFO ptrace command. A local attacker could exploit this vulnerability to possibly corrupt user-space memory or cause a kernel panic, resulting in a denial of service.
Platforms Affected:
Remedy:
No remedy available as of July 4, 2009.
Consequences:
Denial of Service
References:
- iDefense Labs PUBLIC ADVISORY: 10.10.06, FreeBSD ptrace PT_LWPINFO Denial of Service Vulnerability at http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=419.
- BID-20440: FreeBSD PTrace PT_LWPINFO Local Denial of Service Vulnerability
- CVE-2006-4516: Integer signedness error in FreeBSD 6.0-RELEASE allows local users to cause a denial of service (memory corruption and kernel panic) via a PT_LWPINFO ptrace command with a large negative data value that satisfies a signed maximum value check but is used in an unsigned copyout function call.
- SA22367: FreeBSD "PT_LWPINFO" Ptrace Command Denial of Service
Reported:
Oct 10, 2006
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For corrections or additions please email xforce@iss.net