CVE-2010-4656: Buffer Overflow
First published: Tue Jan 25 2011(Updated: )
If the iowarrior devices in this case statement support more than 8 bytes per report, it is possible to write past the end of a kernel heap allocation. This will probably never be possible, but change the allocation to be more defensive anyway. Upstream commit: <a href="http://git.kernel.org/linus/3ed780117dbe5acb64280d218f0347f238dafed0">http://git.kernel.org/linus/3ed780117dbe5acb64280d218f0347f238dafed0</a> Acknowledgements: Red Hat would like to thank Kees Cook for reporting this issue.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux-2.6 | ||
| debian/user-mode-linux | ||
| Linux Kernel | <2.6.37 | |
| Ubuntu Linux | =8.04 | |
| Linux kernel | <2.6.37 |
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Reference Links
- http://openwall.com/lists/oss-security/2011/01/25/4
- http://openwall.com/lists/oss-security/2011/01/25/3
- http://www.securityfocus.com/bid/46069
- https://bugzilla.redhat.com/show_bug.cgi?id=672420
- http://openwall.com/lists/oss-security/2011/01/24/9
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
- http://www.ubuntu.com/usn/USN-1146-1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3ed780117dbe5acb64280d218f0347f238dafed0
- https://launchpad.net/bugs/cve/CVE-2010-4656
- http://git.kernel.org/linus/3ed780117dbe5acb64280d218f0347f238dafed0
- https://rhn.redhat.com/errata/RHSA-2011-0330.html
- https://rhn.redhat.com/errata/RHSA-2011-0421.html
- https://security-tracker.debian.org/tracker/CVE-2010-4656
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4656
- https://nvd.nist.gov/vuln/detail/CVE-2010-4656
- https://ubuntu.com/security/CVE-2010-4656
Frequently Asked Questions
What is the severity of CVE-2010-4656?
CVE-2010-4656 has a medium severity rating due to potential heap overflow risks.
How do I fix CVE-2010-4656?
To mitigate CVE-2010-4656, update to a patched version of the Linux kernel or apply relevant security patches.
Which systems are affected by CVE-2010-4656?
CVE-2010-4656 affects various Linux kernel versions prior to 2.6.37 and specific distributions like Ubuntu 8.04.
What type of vulnerability is CVE-2010-4656?
CVE-2010-4656 is a heap overflow vulnerability associated with improper handling of input from iowarrior devices.
Can CVE-2010-4656 be exploited remotely?
Exploitation of CVE-2010-4656 would likely require local access or specific conditions, making remote exploitation unlikely.
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