PT-2009-5818 · Freebsd · Freebsd

Przemyslaw Frasunek · Published 2009-10-06 · Updated 2009-10-07 · CVE-2009-3527

Positive Technologies (AI Summary)

CVSS v2.0

6.9

Medium

Base vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions FreeBSD versions 6.3 through 6.4

Description A race condition exists in the Pipe (IPC) close function, which can be exploited by local users to cause a denial of service (crash) or gain privileges. This issue is related to kqueues and can trigger a use after free, resulting in a NULL pointer dereference or memory corruption.

Recommendations For FreeBSD versions 6.3 and 6.4, consider applying a patch or updating to a newer version to resolve the issue. As a temporary workaround, restrict access to the Pipe (IPC) close function to minimize the risk of exploitation.

Exploit

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2009-3527

Affected Products

Freebsd

References · 7

• 🔥 http://securityfocus.com/archive/1/506449 · Exploit
• 🔥 https://exploit-db.com/exploits/9859 · Exploit
• http://securitytracker.com/id?1022982 · Patch
• http://securityfocus.com/bid/36375 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2009-3527 · Security Note
• http://osvdb.org/58544 · Note
• http://security.freebsd.org/advisories/FreeBSD-SA-09:13.pipe.asc · Patch, Vendor Advisory