CVE-2016-4482 Information

Description

The proc_connectinfo function in drivers/usb/core/devio.c in the Linux kernel through 4.6 does not initialize a certain data structure which allows local users to obtain sensitive information from kernel stack memory via a crafted USBDEVFS_CONNECTINFO ioctl call.

CVSS Vector

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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=681fef8380eb818c0b845fca5d2ab1dcbab114ee http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184414.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html http://www.debian.org/security/2016/dsa-3607 http://www.openwall.com/lists/oss-security/2016/05/04/2 http://www.securityfocus.com/bid/90029 http://www.ubuntu.com/usn/USN-3016-1 http://www.ubuntu.com/usn/USN-3016-2 http://www.ubuntu.com/usn/USN-3016-3 http://www.ubuntu.com/usn/USN-3016-4 http://www.ubuntu.com/usn/USN-3017-1 http://www.ubuntu.com/usn/USN-3017-2 http://www.ubuntu.com/usn/USN-3017-3 http://www.ubuntu.com/usn/USN-3018-1 http://www.ubuntu.com/usn/USN-3018-2 http://www.ubuntu.com/usn/USN-3019-1 http://www.ubuntu.com/usn/USN-3020-1 http://www.ubuntu.com/usn/USN-3021-1 http://www.ubuntu.com/usn/USN-3021-2 https://bugzilla.redhat.com/show_bug.cgi?id=1332931 https://github.com/torvalds/linux/commit/681fef8380eb818c0b845fca5d2ab1dcbab114ee

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.2