PT-2020-8835 · NetGear · R6100+7

Mongo · Published 2020-04-28 · Updated 2020-05-01 · CVE-2018-21191

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions D6100 versions prior to 1.0.0.57 R6100 versions prior to 1.0.1.20 R7800 versions prior to 1.0.2.40 WNDR3700v4 versions prior to 1.0.2.92 WNDR4300 versions prior to 1.0.2.94 WNDR4300v2 versions prior to 1.0.0.50 WNDR4500v3 versions prior to 1.0.0.50 WNR2000v5 versions prior to 1.0.0.62

Description The issue is a stack-based buffer overflow that can be exploited by an authenticated user.

Recommendations For D6100 version prior to 1.0.0.57, update to version 1.0.0.57 or later. For R6100 version prior to 1.0.1.20, update to version 1.0.1.20 or later. For R7800 version prior to 1.0.2.40, update to version 1.0.2.40 or later. For WNDR3700v4 version prior to 1.0.2.92, update to version 1.0.2.92 or later. For WNDR4300 version prior to 1.0.2.94, update to version 1.0.2.94 or later. For WNDR4300v2 version prior to 1.0.0.50, update to version 1.0.0.50 or later. For WNDR4500v3 version prior to 1.0.0.50, update to version 1.0.0.50 or later. For WNR2000v5 version prior to 1.0.0.62, update to version 1.0.0.62 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-21191

Affected Products

D6100

R6100

R7800

Wndr3700V4

Wndr4300

Wndr4300V2

Wndr4500V3

Wnr2000V5

References · 4

• https://osv.dev/vulnerability/CVE-2018-21191 · Vendor Advisory
• https://kb.netgear.com/000055166/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2604 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-21191 · Security Note
• https://t.me/cvenotify/3323 · Telegram Post