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CVE-2007-4571

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture ...

2.1 LowPublic exploitFix available

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.

Exploit likelihood

0.76%Down 2.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 2.1

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.

Record
CVE-2007-4571
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:P/I:N/A:N
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2007-4571
Updated
2026-11-02
EUVDEUVD-2007-4553 No score

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.

Record
EUVD-2007-4553
Updated
2026-11-03
GitHub AdvisoriesGHSA-6cf8-wrcg-w8rr No score

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture ...

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.

Record
GHSA-6cf8-wrcg-w8rr
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux-2.6
Debian:4.0
From an advisory covering 4 CVEs
 before 2.6.18.dfsg.1-17etch1, plus listed versions
2.6.18.dfsg.1-122.6.18.dfsg.1-12etch12.6.18.dfsg.1-12etch22.6.18.dfsg.1-132.6.18.dfsg.1-13etch1
Show 10 moreShow less
2.6.18.dfsg.1-13etch22.6.18.dfsg.1-13etch32.6.18.dfsg.1-13etch42.6.18.dfsg.1-13etch52.6.18.dfsg.1-13etch62.6.18.dfsg.1-13lenny12.6.18.dfsg.1-142.6.18.dfsg.1-152.6.18.dfsg.1-162.6.18.dfsg.1-17
2.6.18.dfsg.1-17etch1
alsa-driver
Debian:3.1
 before 1.0.8-7sarge1, plus listed versions
1.0.8-7
1.0.8-7sarge1
alsa-modules-i386
Debian:3.1
 before 1.0.8+2sarge2, plus listed versions
1.0.8+21.0.8+2sarge11.0.8+2sarge1.1
1.0.8+2sarge2
alsa-driver
Debian:4.0
 before 1.0.13-5etch1, plus listed versions
1.0.13-5
1.0.13-5etch1
kernel
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
Show 73 moreShow less
Affected packages
PackageAffectedFixed
kernel-largesmp
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 9 CVEs
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-PAE
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debug
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-doc
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-xen
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::client
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-PAE
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debug
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-doc
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-kdump
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-kdump-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-kdump-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-xen
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 3 CVEs
 before 0:2.6.18-53.1.4.el5
0:2.6.18-53.1.4.el5

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBLinux Kernel 2.6.x - ALSA snd-page-alloc Local Proc File Information Disclosure2007-09-21

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
aliases
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-4571 is a low vulnerability (CVSS 2.1) in Linux Kernel, published September 26, 2007. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. Fixed in alsa-driver 1.0.8-7sarge1.

References

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