PT-2017-1929 · Linux+2 · Linux Kernel+2

Brad Spengler · Published 2017-04-22 · Updated 2023-02-14 · CVE-2017-8063

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions 4.9.x through 4.10.x before 4.10.12

Description The issue is caused by a buffer overflow in the drivers/media/usb/dvb-usb/cxusb.c driver of the Linux kernel. It can be exploited by a local attacker who interacts incorrectly with the CONFIG VMAP STACK parameter, potentially causing a denial of service, such as a system crash, or possibly other unspecified impacts. This is achieved by leveraging the use of more than one virtual page for a DMA scatterlist.

Recommendations For Linux kernel versions 4.9.x through 4.10.x before 4.10.12, update to version 4.10.12 or later to resolve the issue.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-1507

ALT-PU-2017-1508

BDU:2017-01089

CVE-2017-8063

USN-3314-1

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 14

• https://github.com/torvalds/linux/commit/3f190e3aec212fc8c61e202c51400afa7384d4bc · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-8063 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-8063 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-8063 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-8063 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f190e3aec212fc8c61e202c51400afa7384d4bc · Patch
• http://openwall.com/lists/oss-security/2017/04/16/4 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-8063 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3314-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-8063 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-8063 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-01089 · Security Note
• http://securityfocus.com/bid/97974 · Note
• http://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.12 · Note