CVE-2017-7616: Infoleak
First published: Mon Apr 10 2017(Updated: )
Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c in the Linux kernel allows local users to obtain sensitive information from uninitialized stack data by triggering failure of a certain bitmap operation. Advisory: <a href="https://nvd.nist.gov/vuln/detail/CVE-2017-7616">https://nvd.nist.gov/vuln/detail/CVE-2017-7616</a> Detailed analysis: <a href="https://grsecurity.net/the_infoleak_that_mostly_wasnt.php">https://grsecurity.net/the_infoleak_that_mostly_wasnt.php</a> Upstream patch: <a href="https://github.com/torvalds/linux/commit/cf01fb9985e8deb25ccf0ea54d916b8871ae0e62">https://github.com/torvalds/linux/commit/cf01fb9985e8deb25ccf0ea54d916b8871ae0e62</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.10.9 | |
| Google Android | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf01fb9985e8deb25ccf0ea54d916b8871ae0e62
- http://www.securityfocus.com/bid/97527
- http://www.securitytracker.com/id/1038503
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2018:1854
- https://github.com/torvalds/linux/commit/cf01fb9985e8deb25ccf0ea54d916b8871ae0e62
- https://source.android.com/security/bulletin/2017-09-01
- https://launchpad.net/bugs/cve/CVE-2017-7616
- https://nvd.nist.gov/vuln/detail/CVE-2017-7616
- https://grsecurity.net/the_infoleak_that_mostly_wasnt.php
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1441095
- https://access.redhat.com/support/policy/updates/errata/
- https://bugzilla.redhat.com/show_bug.cgi?id=1441088
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cf01fb9985e8deb25ccf0ea54d916b8871ae0e62
- https://source.android.com/docs/security/bulletin/2017-09-01 (Advisory)
- https://git.kernel.org/linus/cf01fb9985e8deb25ccf0ea54d916b8871ae0e62
- https://security-tracker.debian.org/tracker/CVE-2017-7616
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7616
- https://ubuntu.com/security/CVE-2017-7616
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2017-7616.
What is the severity of CVE-2017-7616?
The severity of CVE-2017-7616 is medium.
How does CVE-2017-7616 affect Linux kernel versions?
CVE-2017-7616 affects Linux kernel versions up to 4.10.9.
How can local users exploit CVE-2017-7616?
Local users can exploit CVE-2017-7616 to obtain sensitive information from uninitialized stack data.
Are there any known remediation steps for CVE-2017-7616?
Yes, updating the Linux kernel to version 4.11 or higher will address the CVE-2017-7616 vulnerability.
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