CVE-2012-3510: Use After Free
First published: Mon Aug 20 2012(Updated: )
An use-after-free flaw has been found in the way taskstat's TASKSTATS_CMD_ATTR_PID command and exiting tasks with already freed mm interacted. An unprivileged local user could use this flaw to crash the system or leak kernel memory. Upstream fix: <a href="http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9">http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9</a> References: <a href="http://bugzilla.openvz.org/show_bug.cgi?id=2294">http://bugzilla.openvz.org/show_bug.cgi?id=2294</a> Acknowledgements: Red Hat would like to thank Alexander Peslyak for reporting this issue.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=2.6.18.8 | |
| Linux Kernel | =2.6.10 | |
| Linux Kernel | =2.6.10-rc1 | |
| Linux Kernel | =2.6.10-rc2 | |
| Linux Kernel | =2.6.10-rc3 | |
| Linux Kernel | =2.6.11 | |
| Linux Kernel | =2.6.11-rc1 | |
| Linux Kernel | =2.6.11-rc2 | |
| Linux Kernel | =2.6.11-rc3 | |
| Linux Kernel | =2.6.11-rc4 | |
| Linux Kernel | =2.6.11-rc5 | |
| Linux Kernel | =2.6.11.1 | |
| Linux Kernel | =2.6.11.2 | |
| Linux Kernel | =2.6.11.3 | |
| Linux Kernel | =2.6.11.4 | |
| Linux Kernel | =2.6.11.5 | |
| Linux Kernel | =2.6.11.6 | |
| Linux Kernel | =2.6.11.7 | |
| Linux Kernel | =2.6.11.8 | |
| Linux Kernel | =2.6.11.9 | |
| Linux Kernel | =2.6.11.10 | |
| Linux Kernel | =2.6.11.11 | |
| Linux Kernel | =2.6.11.12 | |
| Linux Kernel | =2.6.12 | |
| Linux Kernel | =2.6.12-rc1 | |
| Linux Kernel | =2.6.12-rc2 | |
| Linux Kernel | =2.6.12-rc3 | |
| Linux Kernel | =2.6.12-rc4 | |
| Linux Kernel | =2.6.12-rc5 | |
| Linux Kernel | =2.6.12-rc6 | |
| Linux Kernel | =2.6.12.1 | |
| Linux Kernel | =2.6.12.2 | |
| Linux Kernel | =2.6.12.3 | |
| Linux Kernel | =2.6.12.4 | |
| Linux Kernel | =2.6.12.5 | |
| Linux Kernel | =2.6.12.6 | |
| Linux Kernel | =2.6.13 | |
| Linux Kernel | =2.6.13-rc1 | |
| Linux Kernel | =2.6.13-rc2 | |
| Linux Kernel | =2.6.13-rc3 | |
| Linux Kernel | =2.6.13-rc4 | |
| Linux Kernel | =2.6.13-rc5 | |
| Linux Kernel | =2.6.13-rc6 | |
| Linux Kernel | =2.6.13-rc7 | |
| Linux Kernel | =2.6.13.1 | |
| Linux Kernel | =2.6.13.2 | |
| Linux Kernel | =2.6.13.3 | |
| Linux Kernel | =2.6.13.4 | |
| Linux Kernel | =2.6.13.5 | |
| Linux Kernel | =2.6.14 | |
| Linux Kernel | =2.6.14-rc1 | |
| Linux Kernel | =2.6.14-rc2 | |
| Linux Kernel | =2.6.14-rc3 | |
| Linux Kernel | =2.6.14-rc4 | |
| Linux Kernel | =2.6.14-rc5 | |
| Linux Kernel | =2.6.14.1 | |
| Linux Kernel | =2.6.14.2 | |
| Linux Kernel | =2.6.14.3 | |
| Linux Kernel | =2.6.14.4 | |
| Linux Kernel | =2.6.14.5 | |
| Linux Kernel | =2.6.14.6 | |
| Linux Kernel | =2.6.14.7 | |
| Linux Kernel | =2.6.15 | |
| Linux Kernel | =2.6.15-rc1 | |
| Linux Kernel | =2.6.15-rc2 | |
| Linux Kernel | =2.6.15-rc3 | |
| Linux Kernel | =2.6.15-rc4 | |
| Linux Kernel | =2.6.15-rc5 | |
| Linux Kernel | =2.6.15-rc6 | |
| Linux Kernel | =2.6.15-rc7 | |
| Linux Kernel | =2.6.15.1 | |
| Linux Kernel | =2.6.15.2 | |
| Linux Kernel | =2.6.15.3 | |
| Linux Kernel | =2.6.15.4 | |
| Linux Kernel | =2.6.15.5 | |
| Linux Kernel | =2.6.15.6 | |
| Linux Kernel | =2.6.15.7 | |
| Linux Kernel | =2.6.15.8 | |
| Linux Kernel | =2.6.15.9 | |
| Linux Kernel | =2.6.15.10 | |
| Linux Kernel | =2.6.15.11 | |
| Linux Kernel | =2.6.16 | |
| Linux Kernel | =2.6.16-rc1 | |
| Linux Kernel | =2.6.16-rc2 | |
| Linux Kernel | =2.6.16-rc3 | |
| Linux Kernel | =2.6.16-rc4 | |
| Linux Kernel | =2.6.16-rc5 | |
| Linux Kernel | =2.6.16-rc6 | |
| Linux Kernel | =2.6.16-rc7 | |
| Linux Kernel | =2.6.16.1 | |
| Linux Kernel | =2.6.16.2 | |
| Linux Kernel | =2.6.16.3 | |
| Linux Kernel | =2.6.16.4 | |
| Linux Kernel | =2.6.16.5 | |
| Linux Kernel | =2.6.16.6 | |
| Linux Kernel | =2.6.16.7 | |
| Linux Kernel | =2.6.16.8 | |
| Linux Kernel | =2.6.16.9 | |
| Linux Kernel | =2.6.16.10 | |
| Linux Kernel | =2.6.16.11 | |
| Linux Kernel | =2.6.16.12 | |
| Linux Kernel | =2.6.16.13 | |
| Linux Kernel | =2.6.16.14 | |
| Linux Kernel | =2.6.16.15 | |
| Linux Kernel | =2.6.16.16 | |
| Linux Kernel | =2.6.16.17 | |
| Linux Kernel | =2.6.16.18 | |
| Linux Kernel | =2.6.16.19 | |
| Linux Kernel | =2.6.16.20 | |
| Linux Kernel | =2.6.16.21 | |
| Linux Kernel | =2.6.16.22 | |
| Linux Kernel | =2.6.16.23 | |
| Linux Kernel | =2.6.16.24 | |
| Linux Kernel | =2.6.16.25 | |
| Linux Kernel | =2.6.16.26 | |
| Linux Kernel | =2.6.16.27 | |
| Linux Kernel | =2.6.16.28 | |
| Linux Kernel | =2.6.16.29 | |
| Linux Kernel | =2.6.16.30 | |
| Linux Kernel | =2.6.16.31 | |
| Linux Kernel | =2.6.16.32 | |
| Linux Kernel | =2.6.16.33 | |
| Linux Kernel | =2.6.16.34 | |
| Linux Kernel | =2.6.16.35 | |
| Linux Kernel | =2.6.16.36 | |
| Linux Kernel | =2.6.16.37 | |
| Linux Kernel | =2.6.16.38 | |
| Linux Kernel | =2.6.16.39 | |
| Linux Kernel | =2.6.16.40 | |
| Linux Kernel | =2.6.16.41 | |
| Linux Kernel | =2.6.16.42 | |
| Linux Kernel | =2.6.16.43 | |
| Linux Kernel | =2.6.16.44 | |
| Linux Kernel | =2.6.16.45 | |
| Linux Kernel | =2.6.16.46 | |
| Linux Kernel | =2.6.16.47 | |
| Linux Kernel | =2.6.16.48 | |
| Linux Kernel | =2.6.16.49 | |
| Linux Kernel | =2.6.16.50 | |
| Linux Kernel | =2.6.16.51 | |
| Linux Kernel | =2.6.16.52 | |
| Linux Kernel | =2.6.16.53 | |
| Linux Kernel | =2.6.16.54 | |
| Linux Kernel | =2.6.16.55 | |
| Linux Kernel | =2.6.16.56 | |
| Linux Kernel | =2.6.16.57 | |
| Linux Kernel | =2.6.16.58 | |
| Linux Kernel | =2.6.16.59 | |
| Linux Kernel | =2.6.16.60 | |
| Linux Kernel | =2.6.16.61 | |
| Linux Kernel | =2.6.16.62 | |
| Linux Kernel | =2.6.17 | |
| Linux Kernel | =2.6.17-rc1 | |
| Linux Kernel | =2.6.17-rc2 | |
| Linux Kernel | =2.6.17-rc3 | |
| Linux Kernel | =2.6.17-rc4 | |
| Linux Kernel | =2.6.17-rc5 | |
| Linux Kernel | =2.6.17-rc6 | |
| Linux Kernel | =2.6.17.1 | |
| Linux Kernel | =2.6.17.2 | |
| Linux Kernel | =2.6.17.3 | |
| Linux Kernel | =2.6.17.4 | |
| Linux Kernel | =2.6.17.5 | |
| Linux Kernel | =2.6.17.6 | |
| Linux Kernel | =2.6.17.7 | |
| Linux Kernel | =2.6.17.8 | |
| Linux Kernel | =2.6.17.9 | |
| Linux Kernel | =2.6.17.10 | |
| Linux Kernel | =2.6.17.11 | |
| Linux Kernel | =2.6.17.12 | |
| Linux Kernel | =2.6.17.13 | |
| Linux Kernel | =2.6.17.14 | |
| Linux Kernel | =2.6.18 | |
| Linux Kernel | =2.6.18-rc1 | |
| Linux Kernel | =2.6.18-rc2 | |
| Linux Kernel | =2.6.18-rc3 | |
| Linux Kernel | =2.6.18-rc4 | |
| Linux Kernel | =2.6.18-rc5 | |
| Linux Kernel | =2.6.18-rc6 | |
| Linux Kernel | =2.6.18-rc7 | |
| Linux Kernel | =2.6.18.1 | |
| Linux Kernel | =2.6.18.2 | |
| Linux Kernel | =2.6.18.3 | |
| Linux Kernel | =2.6.18.4 | |
| Linux Kernel | =2.6.18.5 | |
| Linux Kernel | =2.6.18.6 | |
| Linux Kernel | =2.6.18.7 |
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Reference Links
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9
- http://rhn.redhat.com/errata/RHSA-2012-1323.html
- http://secunia.com/advisories/50811
- http://www.openwall.com/lists/oss-security/2012/08/20/12
- http://www.securityfocus.com/bid/55144
- http://www.securitytracker.com/id?1027602
- https://bugzilla.redhat.com/show_bug.cgi?id=849722
- https://github.com/torvalds/linux/commit/f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f0ec1aaf54caddd21c259aea8b2ecfbde4ee4fb9
- http://bugzilla.openvz.org/show_bug.cgi?id=2294
- https://rhn.redhat.com/errata/RHSA-2012-1323.html
Frequently Asked Questions
What is the severity of CVE-2012-3510?
The severity of CVE-2012-3510 is generally rated as high due to its potential for system crash and memory leaks.
How do I fix CVE-2012-3510?
To fix CVE-2012-3510, you should apply the latest kernel updates or patches that address this vulnerability.
Which versions of the Linux kernel are affected by CVE-2012-3510?
CVE-2012-3510 affects Linux kernel versions up to and including 2.6.18.8 and specific 2.6.10 to 2.6.18 versions.
What is a use-after-free vulnerability like CVE-2012-3510?
A use-after-free vulnerability like CVE-2012-3510 occurs when memory is accessed after it has been freed, leading to possible system instability or exploitation.
Can unprivileged users exploit CVE-2012-3510?
Yes, unprivileged local users can exploit CVE-2012-3510 to crash the system or leak sensitive kernel memory.
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