CVE-2007-2878

Linux Kernel < 2.6.21.2 - Denial of Service via VFAT Compat Ioctls

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-2878. PoCs published by Bart Oldeman.

AI-analyzed exploit summary This exploit triggers a denial-of-service vulnerability in the Linux Kernel by repeatedly calling the VFAT_IOCTL_READDIR_BOTH ioctl, causing the kernel to crash. The code demonstrates the vulnerability by reading directory entries in a loop until an error occurs.

Description

The VFAT compat ioctls in the Linux kernel before 2.6.21.2, when run on a 64-bit system, allow local users to corrupt a kernel_dirent struct and cause a denial of service (system crash) via unknown vectors.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Bart Oldeman · cdoslinux
https://www.exploit-db.com/exploits/30080

This exploit triggers a denial-of-service vulnerability in the Linux Kernel by repeatedly calling the VFAT_IOCTL_READDIR_BOTH ioctl, causing the kernel to crash. The code demonstrates the vulnerability by reading directory entries in a loop until an error occurs.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Linux Kernel (versions affected by CVE-2007-2878)
No auth needed
Prerequisites: Local access to the target system · VFAT filesystem mounted
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (20)

Core 20
Core References
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11674
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27747
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/34669
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2007-0939.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/28626
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2008/dsa-1479
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-510-1
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/35926
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/2023
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26760
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2007-0705.html
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-489-1
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/25505
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/24134
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-486-1
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27436
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26139
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26133

Scores

EPSS 0.0088
EPSS Percentile 54.4%

Details

Status published
Products (1)
linux/linux_kernel 2.6.21.1
Published May 29, 2007
Tracked Since Feb 18, 2026