CVE-2017-7487 Information

Description

The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80 http://www.debian.org/security/2017/dsa-3886 http://www.securityfocus.com/bid/98439 http://www.securitytracker.com/id/1039237 https://bugzilla.redhat.com/show_bug.cgi?id=1447734 https://github.com/torvalds/linux/commit/ee0d8d8482345ff97a75a7d747efc309f13b0d80 https://patchwork.ozlabs.org/patch/757549/ https://source.android.com/security/bulletin/2017-09-01

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8