PT-2020-8847 · NetGear · Netgear Wndr4300V2+5

Mongo · Published 2020-04-28 · Updated 2020-05-04 · CVE-2018-21203

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions NETGEAR R6100 versions prior to 1.0.1.20 NETGEAR R9000 versions prior to 1.0.2.52 NETGEAR WNDR3700v4 versions prior to 1.0.2.96 NETGEAR WNDR4300 versions prior to 1.0.2.98 NETGEAR WNDR4300v2 versions prior to 1.0.0.50 NETGEAR WNDR4500v3 versions prior to 1.0.0.50

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

Recommendations For R6100 version prior to 1.0.1.20, update to version 1.0.1.20 or later. For R9000 version prior to 1.0.2.52, update to version 1.0.2.52 or later. For WNDR3700v4 version prior to 1.0.2.96, update to version 1.0.2.96 or later. For WNDR4300 version prior to 1.0.2.98, update to version 1.0.2.98 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.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-21203

Affected Products

Netgear R6100

Netgear R9000

Netgear Wndr3700V4

Netgear Wndr4300

Netgear Wndr4300V2

Netgear Wndr4500V3

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2018-21203 · Security Note
• https://kb.netgear.com/000055146/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2589 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-21203 · Vendor Advisory