PT-2017-1931 · Linux+1 · Linux Kernel+1

Brad Spengler · Published 2017-02-02 · Updated 2017-04-27 · CVE-2017-8061

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 4.9.x through 4.10.6

Description The issue is caused by incorrect interaction with the CONFIG VMAP STACK option in the Linux kernel, allowing local users to cause a denial of service, such as a system crash or memory corruption, by leveraging the use of more than one virtual page for a DMA scatterlist. This is due to a buffer overflow in memory.

Recommendations For Linux kernel versions 4.9.x through 4.10.6, update to version 4.10.7 or later to resolve the issue. As a temporary workaround, consider disabling the CONFIG VMAP STACK option until a patch is available. Restrict access to the vulnerable driver dvb-usb-firmware.c to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-1127

ALT-PU-2017-1299

ALT-PU-2017-1398

ALT-PU-2017-1399

BDU:2017-01091

CVE-2017-8061

Affected Products

Alt Linux

Linux Kernel

References · 16

• https://github.com/torvalds/linux/commit/67b0503db9c29b04eadfeede6bebbfe5ddad94ef · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-8061 · Security Note
• http://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.7 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-8061 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-8061 · Security Note
• http://openwall.com/lists/oss-security/2017/04/16/4 · Patch
• https://ubuntu.com/security/CVE-2017-8061 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-8061 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-8061 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-8061 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=67b0503db9c29b04eadfeede6bebbfe5ddad94ef · Patch
• https://bdu.fstec.ru/vul/2017-01091 · Security Note
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.7 · Note
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.24 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8061 · Note