CVE-2011-2517: Buffer Overflow
First published: Fri Jul 01 2011(Updated: )
In both trigger_scan and sched_scan operations, we were checking for the SSID length before assigning the value correctly. Since the memory was just kzalloc'ed, the check was always failing and SSID with over 32 characters were allowed to go through. This is causing a buffer overflow when copying the actual SSID to the proper place. Upstream fixes: <a href="http://git.kernel.org/linus/208c72f4fe44fe09577e7975ba0e7fa0278f3d03">http://git.kernel.org/linus/208c72f4fe44fe09577e7975ba0e7fa0278f3d03</a> <a href="http://git.kernel.org/linus/57a27e1d6a3bb9ad4efeebd3a8c71156d6207536">http://git.kernel.org/linus/57a27e1d6a3bb9ad4efeebd3a8c71156d6207536</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <2.6.39.2 | |
| Redhat Enterprise Linux Server | =5.0 | |
| Redhat Enterprise Linux Workstation | =5.0 | |
| Redhat Enterprise Linux | =5.0 | |
| Redhat Enterprise Linux Desktop | =5.0 | |
| debian/linux-2.6 |
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Reference Links
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.2
- https://bugzilla.redhat.com/show_bug.cgi?id=718152
- https://github.com/torvalds/linux/commit/208c72f4fe44fe09577e7975ba0e7fa0278f3d03
- http://www.openwall.com/lists/oss-security/2011/07/01/4
- http://rhn.redhat.com/errata/RHSA-2011-1212.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=208c72f4fe44fe09577e7975ba0e7fa0278f3d03
- https://launchpad.net/bugs/cve/CVE-2011-2517
- http://git.kernel.org/linus/208c72f4fe44fe09577e7975ba0e7fa0278f3d03
- http://git.kernel.org/linus/57a27e1d6a3bb9ad4efeebd3a8c71156d6207536
- https://rhn.redhat.com/errata/RHSA-2011-1212.html
- https://rhn.redhat.com/errata/RHSA-2011-1189.html
- https://rhn.redhat.com/errata/RHSA-2011-1253.html
- https://rhn.redhat.com/errata/RHSA-2011-1813.html
- https://security-tracker.debian.org/tracker/CVE-2011-2517
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2517
- https://nvd.nist.gov/vuln/detail/CVE-2011-2517
- https://ubuntu.com/security/CVE-2011-2517
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