CVE-2017-7472
First published: Thu Apr 13 2017(Updated: )
A vulnerability was found in the Linux kernel. It was found that keyctl_set_reqkey_keyring() function leaks thread keyring which allows unprivileged local user to exhaust kernel memory. References: <a href="https://lkml.org/lkml/2017/4/1/235">https://lkml.org/lkml/2017/4/1/235</a> <a href="https://lkml.org/lkml/2017/4/3/724">https://lkml.org/lkml/2017/4/3/724</a> <a href="http://seclists.org/oss-sec/2017/q2/246">http://seclists.org/oss-sec/2017/q2/246</a> Upstream patch: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.10.12 | |
| 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=c9f838d104fed6f2f61d68164712e3204bf5271b
- http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
- http://openwall.com/lists/oss-security/2017/05/11/1
- http://www.securityfocus.com/bid/98422
- http://www.securitytracker.com/id/1038471
- https://access.redhat.com/errata/RHSA-2018:0151
- https://access.redhat.com/errata/RHSA-2018:0152
- https://access.redhat.com/errata/RHSA-2018:0181
- https://bugzilla.novell.com/show_bug.cgi?id=1034862
- https://bugzilla.redhat.com/show_bug.cgi?id=1442086
- https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b
- https://lkml.org/lkml/2017/4/1/235
- https://lkml.org/lkml/2017/4/3/724
- https://www.exploit-db.com/exploits/42136/
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13
- https://launchpad.net/bugs/cve/CVE-2017-7472
- http://seclists.org/oss-sec/2017/q2/246
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1442093
- https://security-tracker.debian.org/tracker/CVE-2017-7472
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7472
- https://nvd.nist.gov/vuln/detail/CVE-2017-7472
- https://ubuntu.com/security/CVE-2017-7472
Frequently Asked Questions
What is the CVE ID of this vulnerability?
The CVE ID of this vulnerability is CVE-2017-7472.
What is the severity level of CVE-2017-7472?
The severity level of CVE-2017-7472 is medium (4 out of 10).
What is the affected software for CVE-2017-7472?
The affected software for CVE-2017-7472 includes various versions of the Linux kernel before 4.11~ in different distributions.
How does CVE-2017-7472 affect the system?
CVE-2017-7472 allows local users to cause a denial of service (memory consumption) via a series of keyctl_set_reqkey_keyring calls.
Are there any references for CVE-2017-7472?
Yes, you can find more information about CVE-2017-7472 at the following links: [Reference 1](https://lkml.org/lkml/2017/4/1/235), [Reference 2](https://lkml.org/lkml/2017/4/3/724), [Reference 3](http://seclists.org/oss-sec/2017/q2/246).
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