CVE-2010-4077

Linux Kernel < 2.6.36.1 - Information Disclosure via TIOCGICOUNT ioctl

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2010-4077. PoCs published by prdelka.

AI-analyzed exploit summary This exploit leverages an uninitialized struct member in the Linux kernel's serial_core module to leak kernel stack memory to userland via the TIOCGICOUNT ioctl. It dumps the leaked data to a file and displays it on the command line.

Description

The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

Exploits (1)

exploitdb WORKING POC
by prdelka · cdoslinux
https://www.exploit-db.com/exploits/16973

This exploit leverages an uninitialized struct member in the Linux kernel's serial_core module to leak kernel stack memory to userland via the TIOCGICOUNT ioctl. It dumps the leaked data to a file and displays it on the command line.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Linux kernel <= 2.6.37-rc1
No auth needed
Prerequisites: Access to a serial device (e.g., /dev/ttyS0)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (12)

Core 12
Core References
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/09/25/2
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/10/06/6
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/45059
Third Party Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2011-0007.html
Patch, Third Party Advisory mailing-list x_refsource_mlist
http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03387.html
Third Party Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0958.html
Exploit, Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/8129
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/10/07/1
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/42890
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/10/25/3
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=648663

Scores

EPSS 0.0104
EPSS Percentile 59.4%

Details

CWE
CWE-200
Status published
Products (1)
linux/linux_kernel < 2.6.36.1
Published Nov 29, 2010
Tracked Since Feb 18, 2026