CVE-2011-2480: Infoleak
First published: Mon Jun 20 2011(Updated: )
Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/kfreebsd-7 | ||
| FreeBSD FreeBSD | <8.2 | |
| NetBSD NetBSD |
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Reference Links
- http://openwall.com/lists/oss-security/2011/06/16/1
- http://svnweb.freebsd.org/base?view=revision&revision=223145
- https://security-tracker.debian.org/tracker/CVE-2011-2480
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631161
- https://access.redhat.com/security/cve/cve-2011-2480
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631160
- https://www.openwall.com/lists/oss-security/2011/06/20/15
Frequently Asked Questions
What is CVE-2011-2480?
CVE-2011-2480 is an information disclosure vulnerability in the 802.11 stack used in FreeBSD before version 8.2 and NetBSD on certain non-x86 architectures.
How does CVE-2011-2480 impact the affected software?
CVE-2011-2480 allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user.
What is the severity level of CVE-2011-2480?
CVE-2011-2480 has a severity level of high.
How can I fix CVE-2011-2480?
There are no known fixes for CVE-2011-2480 at this time. It is recommended to upgrade to a version of FreeBSD or NetBSD that is not affected.
Where can I find more information about CVE-2011-2480?
You can find more information about CVE-2011-2480 on the Debian Security Tracker (https://security-tracker.debian.org/tracker/CVE-2011-2480) and the Openwall mailing list archives (https://www.openwall.com/lists/oss-security/2011/06/20/15).
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