CVE-2010-3881: Infoleak
First published: Thu Nov 04 2010(Updated: )
arch/x86/kvm/x86.c in the Linux kernel before 2.6.36.2 does not initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory via read operations on the /dev/kvm device.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux-2.6 | ||
| Linux Kernel | <2.6.36.2 | |
| redhat enterprise Linux server | =6.0 | |
| redhat enterprise Linux workstation | =6.0 | |
| SUSE Linux Enterprise Desktop | =11-sp1 | |
| SUSE Linux Enterprise High Availability Extension | =11-sp1 | |
| SUSE Linux Enterprise Server | =11-sp1 |
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Reference Links
- http://securitytracker.com/id?1024912
- http://secunia.com/advisories/42932
- http://www.securityfocus.com/bid/44666
- http://www.vupen.com/english/advisories/2010/3287
- http://www.vupen.com/english/advisories/2011/0124
- http://www.vupen.com/english/advisories/2011/0298
- https://bugzilla.redhat.com/show_bug.cgi?id=649920
- http://rhn.redhat.com/errata/RHSA-2010-0998.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://www.spinics.net/lists/kvm/msg44130.html
- http://openwall.com/lists/oss-security/2010/11/04/10
- http://openwall.com/lists/oss-security/2010/11/05/4
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=97e69aa62f8b5d338d6cff49be09e37cc1262838
- http://git.kernel.org/?p=virt/kvm/kvm.git%3Ba=commit%3Bh=831d9d02f9522e739825a51a11e3bc5aa531a905
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
- https://launchpad.net/bugs/cve/CVE-2010-3881
- http://git.kernel.org/?p=virt/kvm/kvm.git;a=commit;h=831d9d02f9522e739825a51a11e3bc5aa531a905
- http://git.kernel.org/linus/97e69aa62f8b5d338d6cff49be09e37cc1262838
- https://rhn.redhat.com/errata/RHSA-2010-0998.html
- https://rhn.redhat.com/errata/RHSA-2011-0883.html
- https://security-tracker.debian.org/tracker/CVE-2010-3881
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3881
- https://nvd.nist.gov/vuln/detail/CVE-2010-3881
- https://ubuntu.com/security/CVE-2010-3881
Frequently Asked Questions
What is the severity of CVE-2010-3881?
CVE-2010-3881 has a medium severity rating due to its potential to expose sensitive information from the kernel stack to local users.
How do I fix CVE-2010-3881?
To address CVE-2010-3881, upgrade the Linux kernel to version 2.6.36.2 or later.
Which systems are affected by CVE-2010-3881?
CVE-2010-3881 affects Linux kernel versions prior to 2.6.36.2 across several distributions like Debian, Red Hat, and SUSE.
What behavior does CVE-2010-3881 exploit?
CVE-2010-3881 exploits the failure to initialize certain structure members in the Linux kernel, allowing unauthorized access to kernel memory.
Who can be affected by CVE-2010-3881?
Local users on systems running affected versions of the Linux kernel can be impacted by CVE-2010-3881 as it allows them to read sensitive information.
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