CVE-2017-7472

Public Exploit

Description

The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.76% Top 30%
Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory kernel.org
Affected: n/a Linux kernel before 4.10.13
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b patch third party advisory issue tracking
https://lkml.org/lkml/2017/4/3/724 broken link
https://access.redhat.com/errata/RHSA-2018:0181 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1442086 patch issue tracking
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13 release notes vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html vendor advisory
https://access.redhat.com/errata/RHSA-2018:0152 vendor advisory
https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b patch third party advisory issue tracking
http://www.securityfocus.com/bid/98422 vdb entry
http://www.securitytracker.com/id/1038471 vdb entry
https://bugzilla.novell.com/show_bug.cgi?id=1034862 patch issue tracking
https://www.exploit-db.com/exploits/42136/ exploit
http://openwall.com/lists/oss-security/2017/05/11/1 patch mailing list third party advisory
https://access.redhat.com/errata/RHSA-2018:0151 vendor advisory
https://lkml.org/lkml/2017/4/1/235 broken link

Frequently Asked Questions

What is the severity of CVE-2017-7472?
CVE-2017-7472 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7472?
To fix CVE-2017-7472, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7472 being actively exploited in the wild?
It is possible that CVE-2017-7472 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7472?
CVE-2017-7472 affects n/a Linux kernel before 4.10.13.
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