CVE-2009-2649

FreeBSD 6.0 and 8.0 - Denial of Service via IATA Driver IOCTL Request

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-2649. PoCs published by Shaun Colley.

AI-analyzed exploit summary This exploit triggers a kernel panic in FreeBSD by passing an excessively large value (0xffffffff) to the malloc(9) function via an ATA IOCTL request. It targets a vulnerability in the ATA device driver, causing a denial-of-service condition.

Description

The IATA (ata) driver in FreeBSD 6.0 and 8.0, when read access to /dev is available, allows local users to cause a denial of service (kernel panic) via a certain IOCTL request with a large count, which triggers a malloc call with a large value.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Shaun Colley · cdosfreebsd
https://www.exploit-db.com/exploits/9134

This exploit triggers a kernel panic in FreeBSD by passing an excessively large value (0xffffffff) to the malloc(9) function via an ATA IOCTL request. It targets a vulnerability in the ATA device driver, causing a denial-of-service condition.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: FreeBSD 6.0 and 8.0
No auth needed
Prerequisites: Read access to an ATA device in /dev (e.g., /dev/acd0)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1022538
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/9134
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/35645

Scores

EPSS 0.0078
EPSS Percentile 51.1%

Details

CWE
CWE-264
Status published
Products (2)
freebsd/freebsd 6.0
freebsd/freebsd 8.0
Published Jul 30, 2009
Tracked Since Feb 18, 2026