CVE-2017-7472 Information

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.

CVSS Vector

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

Reference

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

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5