National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2007-4571 Detail


The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 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.

Source:  MITRE      Last Modified:  09/26/2007

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
2.1 LOW
(AV:L/AC:L/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (10/18/2007)

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1 or 3.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name;a=commit;h=ccec6e2c4a74adf76ed4e2478091a311b1806212 External Source CONFIRM;a=commit;h=ccec6e2c4a74adf76ed4e2478091a311b1806212 External Source CONFIRM External Source IDEFENSE 20070925 Linux Kernel ALSA snd_mem_proc_read Information Disclosure Vulnerability External Source CONFIRM External Source DEBIAN DSA-1479 External Source DEBIAN DSA-1505 External Source SUSE SUSE-SA:2007:053 External Source REDHAT RHSA-2007:0939 External Source REDHAT RHSA-2007:0993 External Source BID 25807 External Source SECTRACK 1018734 External Source UBUNTU USN-618-1 External Source VUPEN ADV-2007-3272 External Source XF linux-sndpagealloc-information-disclosure(36780) External Source CONFIRM External Source OVAL oval:org.mitre.oval:def:9053 External Source FEDORA FEDORA-2007-714 External Source FEDORA FEDORA-2007-2349

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