PT-2017-2021 · Linux+3 · Linux Kernel+3

Murray Mcallister · Published 2017-01-17 · Updated 2023-02-10 · CVE-2017-5576

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.9.7

Description The issue is caused by an integer overflow in the vc4 get bcl function of the VideoCore DRM driver. This can be exploited by a local attacker using a specially crafted VC4 SUBMIT CL ioctl call with a malicious size value, potentially leading to a denial of service or other unspecified impacts.

Recommendations For Linux kernel versions prior to 4.9.7, update to version 4.9.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the vc4 get bcl function or the VC4 SUBMIT CL ioctl call to minimize the risk of exploitation.

Fix

DoS

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALT-PU-2017-1127

BDU:2017-01188

CVE-2017-5576

OPENSUSE-SU-2017_0456-1

SUSE-SU-2017:0575-1

SUSE-SU-2017:1990-1

USN-3359-1

USN-3361-1

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 464

• https://github.com/torvalds/linux/commit/0f2ff82e11c86c05d051cae32b58226392d33bbf · Patch
• https://ubuntu.com/security/notices/USN-3361-1 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0f2ff82e11c86c05d051cae32b58226392d33bbf · Patch
• https://lkml.org/lkml/2017/1/17/761 · Patch
• https://osv.dev/vulnerability/CVE-2017-5576 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-5546 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-2584 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-5576 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3359-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9755 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-2596 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9150 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7472 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-8405 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6348 · Vendor Advisory