low
1.9
CWE
909
Advisory Published
CVE Published
Updated

CVE-2010-4081

First published: Mon Nov 01 2010(Updated: )

Description of problem: The SNDRV_HDSP_IOCTL_GET_CONFIG_INFO ioctl in hdspm.c allows unprivileged users to read uninitialized kernel stack memory, because several fields of the hdspm_config_info structs declared on the stack are not altered or zeroed before being copied back to the user. Reference: <a href="http://www.openwall.com/lists/oss-security/2010/10/06/6">http://www.openwall.com/lists/oss-security/2010/10/06/6</a> <a href="http://lkml.org/lkml/2010/9/25/41">http://lkml.org/lkml/2010/9/25/41</a> Acknowledgements: Red Hat would like to thank Dan Rosenberg for reporting this issue.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
debian/linux-2.6
Linux Kernel<2.6.36
Linux Kernel=2.6.36
Linux Kernel=2.6.36-rc1
Linux Kernel=2.6.36-rc2
Linux Kernel=2.6.36-rc3
Linux Kernel=2.6.36-rc4
Linux Kernel=2.6.36-rc5
openSUSE=11.2
openSUSE=11.3
SUSE Linux Enterprise Desktop with Beagle=10-sp3
SUSE Linux Enterprise Real Time Extension=11-sp1
SUSE Linux Enterprise Server=9
SUSE Linux Enterprise Server=10-sp3
SUSE Linux Enterprise Software Development Kit=10-sp3
Debian GNU/Linux=5.0

Remedy

http://lkml.org/lkml/2010/9/25/41

Remedy

http://www.openwall.com/lists/oss-security/2010/09/25/2

Remedy

http://www.openwall.com/lists/oss-security/2010/10/07/1

Remedy

http://www.openwall.com/lists/oss-security/2010/10/25/3

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=648670

Remedy

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e68d3b316ab7b02a074edc4f770e6a746390cb7d

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2010-4081?

    CVE-2010-4081 is considered a medium severity vulnerability due to the potential exposure of uninitialized kernel stack memory.

  • How do I fix CVE-2010-4081?

    To fix CVE-2010-4081, upgrade to a patched version of the Linux kernel that addresses the uninitialized memory read issue.

  • Which software versions are affected by CVE-2010-4081?

    CVE-2010-4081 affects Linux kernel versions up to 2.6.36 and various specific versions of openSUSE and SUSE Linux Enterprise.

  • What type of vulnerability is CVE-2010-4081?

    CVE-2010-4081 is an information disclosure vulnerability that allows unprivileged users to read sensitive data from the kernel memory.

  • Can CVE-2010-4081 be exploited remotely?

    CVE-2010-4081 requires local access to the system for exploitation, making it less of a remote threat.

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