CVE-2010-4082
First published: Mon Nov 01 2010(Updated: )
Description of problem: The VIAFB_GET_INFO device ioctl allows unprivileged users to read 1968 bytes of uninitialized stack memory, because the "reserved" member of the viafb_ioctl_info struct declared on the stack is 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.indiana.edu/hypermail//linux/kernel/1009.1/03392.html">http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03392.html</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 Software | Affected Version | How 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 | |
| openSUSE | =11.2 | |
| openSUSE | =11.3 | |
| SUSE Linux Enterprise Desktop with Beagle | =11-sp1 | |
| SUSE Linux Enterprise Real Time Extension | =11-sp1 | |
| SUSE Linux Enterprise Server | =11-sp1 |
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Reference Links
- http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03392.html
- http://www.openwall.com/lists/oss-security/2010/09/25/2
- http://www.openwall.com/lists/oss-security/2010/10/07/1
- http://www.openwall.com/lists/oss-security/2010/10/06/6
- http://www.openwall.com/lists/oss-security/2010/10/25/3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b4aaa78f4c2f9cde2f335b14f4ca30b01f9651ca
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.36/ChangeLog-2.6.36-rc5
- https://bugzilla.redhat.com/show_bug.cgi?id=648671
- http://www.securityfocus.com/bid/43817
- http://www.redhat.com/support/errata/RHSA-2010-0958.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
- http://secunia.com/advisories/42778
- http://secunia.com/advisories/42801
- http://secunia.com/advisories/42932
- http://www.vupen.com/english/advisories/2011/0012
- http://www.vupen.com/english/advisories/2011/0124
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://secunia.com/advisories/42890
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://www.vupen.com/english/advisories/2011/0298
- https://launchpad.net/bugs/cve/CVE-2010-4082
- http://git.kernel.org/linus/b4aaa78f4c2f9cde2f335b14f4ca30b01f9651ca
- https://rhn.redhat.com/errata/RHSA-2010-0958.html
- https://rhn.redhat.com/errata/RHSA-2011-0007.html
- https://security-tracker.debian.org/tracker/CVE-2010-4082
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b4aaa78f4c2f9cde2f335b14f4ca30b01f9651ca
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4082
- https://nvd.nist.gov/vuln/detail/CVE-2010-4082
- https://ubuntu.com/security/CVE-2010-4082
Frequently Asked Questions
What is the severity of CVE-2010-4082?
CVE-2010-4082 is considered a medium severity vulnerability due to its potential to expose sensitive information through uninitialized stack memory.
How do I fix CVE-2010-4082?
To fix CVE-2010-4082, ensure you update the Linux kernel to a version higher than 2.6.36 which addresses the vulnerability.
Who is affected by CVE-2010-4082?
CVE-2010-4082 affects users of the Linux kernel versions up to and including 2.6.36.
What kind of vulnerability is CVE-2010-4082?
CVE-2010-4082 is a privilege escalation vulnerability that allows unprivileged users to read sensitive memory.
Is CVE-2010-4082 related to specific Linux distributions?
Yes, CVE-2010-4082 impacts various distributions, including Debian and openSUSE, that use the vulnerable kernel versions.
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