CVE-2007-4571

Linux Kernel < 2.6.22.8 - Information Disclosure via ALSA snd_mem_proc_read

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-4571. PoCs published by Karimo_DM.

AI-analyzed exploit summary This exploit demonstrates an information disclosure vulnerability in the Linux kernel's ALSA snd-page-alloc driver. It reads kernel memory by exploiting a boundary check failure when count=1, leaking sensitive data.

Description

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8 does not return the correct write size, which allows local users to obtain sensitive information (kernel memory contents) via a small count argument, as demonstrated by multiple reads of /proc/driver/snd-page-alloc.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Karimo_DM · clocallinux
https://www.exploit-db.com/exploits/30605

This exploit demonstrates an information disclosure vulnerability in the Linux kernel's ALSA snd-page-alloc driver. It reads kernel memory by exploiting a boundary check failure when count=1, leaking sensitive data.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Linux Kernel (versions prior to 2.4.35.3 and 2.6.22.7)
No auth needed
Prerequisites: Local access to the system · Presence of /proc/driver/snd-page-alloc
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (29)

Core 29
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%3A9053
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27747
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27227
Vendor Advisory vendor-advisory x_refsource_suse
http://www.novell.com/linux/security/advisories/2007_53_kernel.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1018734
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-618-1
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2007-0939.html
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/3272
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/28626
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/29054
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2008/dsa-1479
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27824
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/25807
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26989
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2007-0993.html
Issue Tracking x_refsource_confirm
https://issues.rpath.com/browse/RPL-1761
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26980
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2008/dsa-1505
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/36780
Third Party Advisory third-party-advisory x_refsource_idefense
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=600
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/30769
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27101
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/26918

Scores

EPSS 0.0076
EPSS Percentile 50.5%

Details

Status published
Products (1)
linux/linux_kernel < 2.6.22.7
Published Sep 26, 2007
Tracked Since Feb 18, 2026