CVE-2011-2495: Infoleak
First published: Mon Jun 27 2011(Updated: )
/proc/PID/io may be used for gathering private information. E.g. for openssh and vsftpd daemons wchars/rchars may be used to learn the precise password length. [0/2] restrict statistics information to user <a href="https://lkml.org/lkml/2011/6/24/88">https://lkml.org/lkml/2011/6/24/88</a> [1/2] proc: restrict access to /proc/PID/io (<a href="https://access.redhat.com/security/cve/CVE-2011-2495">CVE-2011-2495</a>) <a href="https://patchwork.kernel.org/patch/916032/">https://patchwork.kernel.org/patch/916032/</a> [2/2] taskstats: restrict access to user (<a href="https://access.redhat.com/security/cve/CVE-2011-2494">CVE-2011-2494</a>) <a href="https://patchwork.kernel.org/patch/916042/">https://patchwork.kernel.org/patch/916042/</a> taskstats authorized_keys presence infoleak PoC <a href="http://seclists.org/oss-sec/2011/q2/659">http://seclists.org/oss-sec/2011/q2/659</a> Acknowledgements: Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =2.6.39-rc7 | |
| Linux Linux kernel | =2.6.39-rc6 | |
| Linux Linux kernel | =2.6.39-rc4 | |
| Linux Linux kernel | =2.6.39.1 | |
| Linux Linux kernel | =2.6.39-rc1 | |
| Linux Linux kernel | =2.6.39-rc3 | |
| Linux Linux kernel | <=2.6.39.3 | |
| Linux Linux kernel | =2.6.39 | |
| Linux Linux kernel | =2.6.39-rc2 | |
| Linux Linux kernel | =2.6.39.2 | |
| Linux Linux kernel | =2.6.39-rc5 | |
| debian/linux-2.6 |
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Reference Links
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4
- https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51
- http://www.openwall.com/lists/oss-security/2011/06/27/1
- https://bugzilla.redhat.com/show_bug.cgi?id=716825
- 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=1d1221f375c94ef961ba8574ac4f85c8870ddd51
- https://lkml.org/lkml/2011/6/24/88
- https://access.redhat.com/security/cve/CVE-2011-2495
- https://patchwork.kernel.org/patch/916032/
- https://access.redhat.com/security/cve/CVE-2011-2494
- https://patchwork.kernel.org/patch/916042/
- http://seclists.org/oss-sec/2011/q2/659
- http://article.gmane.org/gmane.comp.security.oss.general/5337
- 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://access.redhat.com/support/policy/updates/errata/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=716825#c0
- http://git.kernel.org/linus/1d1221f375c94ef961ba8574ac4f85c8870ddd51
- http://git.kernel.org/linus/293eb1e7772b25a93647c798c7b89bf26c2da2e0
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=748666
- https://rhn.redhat.com/errata/RHSA-2011-1813.html
- https://launchpad.net/bugs/cve/CVE-2011-2495
- https://security-tracker.debian.org/tracker/CVE-2011-2495
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2495
- https://nvd.nist.gov/vuln/detail/CVE-2011-2495
- https://ubuntu.com/security/CVE-2011-2495
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