CVE-2010-4078
First published: Mon Nov 01 2010(Updated: )
Description of problem: The FBIOGET_VBLANK device ioctl in sis_main.c allows unprivileged users to read 16 bytes of uninitialized stack memory, because the 'reserved' member of the fb_vblank 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/1009.1/03385.html">http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03385.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 | |
| 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 | =10-sp3 | |
| SUSE Linux Enterprise Software Development Kit | =10-sp3 | |
| Debian GNU/Linux | =5.0 |
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Reference Links
- 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=fd02db9de73faebc51240619c7c7f99bee9f65c7
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.36/ChangeLog-2.6.36-rc6
- https://bugzilla.redhat.com/show_bug.cgi?id=648665
- http://www.debian.org/security/2010/dsa-2126
- 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/2010-12/msg00004.html
- http://secunia.com/advisories/42778
- http://secunia.com/advisories/42801
- http://www.vupen.com/english/advisories/2011/0012
- http://www.securityfocus.com/bid/43810
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://www.vupen.com/english/advisories/2011/0298
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- https://launchpad.net/bugs/cve/CVE-2010-4078
- http://lkml.indiana.edu/hypermail//linux/kernel/1009.1/03385.html
- http://git.kernel.org/linus/fd02db9de73faebc51240619c7c7f99bee9f65c7
- https://security-tracker.debian.org/tracker/CVE-2010-4078
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fd02db9de73faebc51240619c7c7f99bee9f65c7
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4078
- https://nvd.nist.gov/vuln/detail/CVE-2010-4078
- https://ubuntu.com/security/CVE-2010-4078
Frequently Asked Questions
What is the severity of CVE-2010-4078?
CVE-2010-4078 is classified as a medium severity vulnerability due to its potential for exposing sensitive data.
How do I fix CVE-2010-4078?
To fix CVE-2010-4078, users should update to a patched version of the Linux kernel that addresses this vulnerability.
Who is affected by CVE-2010-4078?
CVE-2010-4078 affects unprivileged users of specific Linux kernel versions, particularly versions up to 2.6.36.
What is the impact of CVE-2010-4078?
The impact of CVE-2010-4078 allows unprivileged users to read uninitialized stack memory, potentially exposing sensitive information.
What versions of Linux are vulnerable to CVE-2010-4078?
Versions of Linux kernel prior to 2.6.36, including release candidates, are vulnerable to CVE-2010-4078.
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