CVE-2017-5577 Information

Description

The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux kernel before 4.9.7 does not set an errno value upon certain overflow detections which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) via inconsistent size values in a VC4_SUBMIT_CL ioctl call.

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=6b8ac63847bc2f958dd93c09edc941a0118992d9 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.7 http://www.openwall.com/lists/oss-security/2017/01/21/7 http://www.securityfocus.com/bid/95765 https://bugzilla.redhat.com/show_bug.cgi?id=1416437 https://github.com/torvalds/linux/commit/6b8ac63847bc2f958dd93c09edc941a0118992d9 https://lkml.org/lkml/2017/1/17/759

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