CVE-2017-7472

medium

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.

References

https://github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271b

https://access.redhat.com/errata/RHSA-2018:0181

https://access.redhat.com/errata/RHSA-2018:0152

https://access.redhat.com/errata/RHSA-2018:0151

http://openwall.com/lists/oss-security/2017/05/11/1

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c9f838d104fed6f2f61d68164712e3204bf5271b

https://www.exploit-db.com/exploits/42136/

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13

https://lkml.org/lkml/2017/4/3/724

https://lkml.org/lkml/2017/4/1/235

https://bugzilla.redhat.com/show_bug.cgi?id=1442086

https://bugzilla.novell.com/show_bug.cgi?id=1034862

http://www.securitytracker.com/id/1038471

http://www.securityfocus.com/bid/98422

Details

Source: Mitre, NVD

Published: 2017-05-11

Updated: 2025-04-20

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H