CVE-2021-1387

Published: Feb 24, 2021Modified: Nov 21, 2024

8.6

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 4.0

Source: NVD

Description

A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because the software improperly releases resources when it processes certain IPv6 packets that are destined to an affected device. An attacker could exploit this vulnerability by sending multiple crafted IPv6 packets to an affected device. A successful exploit could cause the network stack to run out of available buffers, impairing operations of control plane and management plane protocols and resulting in a DoS condition. Manual intervention would be required to restore normal operations on the affected device. For more information about the impact of this vulnerability, see the Details section of this advisory.

Affected (241)

Products: Cisco: Unified Computing System, Nx Os

Cisco

2 products

Unified Computing System

Nx Os

Configuration A

2 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Cisco Unified Computing System	From 4.0 to 4.0\(4k\)
Cisco Unified Computing System	From 4.1 to 4.1\(1e\)

Running on/with	Platform Versions
Cisco Ucs 64108	All versions
Cisco Ucs 6454	All versions

Configuration B

10 platform

Running on/with	Platform Versions
Cisco Nexus 5548p	All versions
Cisco Nexus 5548up	All versions
Cisco Nexus 5596t	All versions
Cisco Nexus 5596up	All versions
Cisco Nexus 56128p	All versions
Cisco Nexus 5624q	All versions
Cisco Nexus 5648q	All versions
Cisco Nexus 5672up	All versions
Cisco Nexus 5672up 16g	All versions
Cisco Nexus 5696q	All versions

Configuration C

88 vulnerable · 44 platform

Vulnerable Software	Affected Versions
Cisco Nx Os	Version 6.0(2)a3(1)
Cisco Nx Os	Version 6.0(2)a3(2)
Cisco Nx Os	Version 6.0(2)a3(4)
Cisco Nx Os	Version 6.0(2)a4(1)
Cisco Nx Os	Version 6.0(2)a4(2)
Cisco Nx Os	Version 6.0(2)a4(3)
Cisco Nx Os	Version 6.0(2)a4(4)
Cisco Nx Os	Version 6.0(2)a4(5)
Cisco Nx Os	Version 6.0(2)a4(6)
Cisco Nx Os	Version 6.0(2)a6(1)
Cisco Nx Os	Version 6.0(2)a6(1a)
Cisco Nx Os	Version 6.0(2)a6(2)
Cisco Nx Os	Version 6.0(2)a6(2a)
Cisco Nx Os	Version 6.0(2)a6(3)
Cisco Nx Os	Version 6.0(2)a6(3a)
Cisco Nx Os	Version 6.0(2)a6(4)
Cisco Nx Os	Version 6.0(2)a6(4a)
Cisco Nx Os	Version 6.0(2)a6(5)
Cisco Nx Os	Version 6.0(2)a6(5a)
Cisco Nx Os	Version 6.0(2)a6(5b)
Cisco Nx Os	Version 6.0(2)a6(6)
Cisco Nx Os	Version 6.0(2)a6(7)
Cisco Nx Os	Version 6.0(2)a6(8)
Cisco Nx Os	Version 6.0(2)a7(1)
Cisco Nx Os	Version 6.0(2)a7(1a)
Cisco Nx Os	Version 6.0(2)a7(2)
Cisco Nx Os	Version 6.0(2)a7(2a)
Cisco Nx Os	Version 6.0(2)a8(10)
Cisco Nx Os	Version 6.0(2)a8(10a)
Cisco Nx Os	Version 6.0(2)a8(11)
Cisco Nx Os	Version 6.0(2)a8(11a)
Cisco Nx Os	Version 6.0(2)a8(11b)
Cisco Nx Os	Version 6.0(2)a8(1)
Cisco Nx Os	Version 6.0(2)a8(2)
Cisco Nx Os	Version 6.0(2)a8(3)
Cisco Nx Os	Version 6.0(2)a8(4)
Cisco Nx Os	Version 6.0(2)a8(4a)
Cisco Nx Os	Version 6.0(2)a8(5)
Cisco Nx Os	Version 6.0(2)a8(6)
Cisco Nx Os	Version 6.0(2)a8(7)
Cisco Nx Os	Version 6.0(2)a8(7a)
Cisco Nx Os	Version 6.0(2)a8(7b)
Cisco Nx Os	Version 6.0(2)a8(8)
Cisco Nx Os	Version 6.0(2)a8(9)
Cisco Nx Os	Version 6.0(2)u2(1)
Cisco Nx Os	Version 6.0(2)u2(2)
Cisco Nx Os	Version 6.0(2)u2(3)
Cisco Nx Os	Version 6.0(2)u2(4)
Cisco Nx Os	Version 6.0(2)u2(5)
Cisco Nx Os	Version 6.0(2)u2(6)
Cisco Nx Os	Version 6.0(2)u3(1)
Cisco Nx Os	Version 6.0(2)u3(2)
Cisco Nx Os	Version 6.0(2)u3(3)
Cisco Nx Os	Version 6.0(2)u3(4)
Cisco Nx Os	Version 6.0(2)u3(5)
Cisco Nx Os	Version 6.0(2)u3(6)
Cisco Nx Os	Version 6.0(2)u3(7)
Cisco Nx Os	Version 6.0(2)u3(8)
Cisco Nx Os	Version 6.0(2)u3(9)
Cisco Nx Os	Version 6.0(2)u4(1)
Cisco Nx Os	Version 6.0(2)u4(2)
Cisco Nx Os	Version 6.0(2)u4(3)
Cisco Nx Os	Version 6.0(2)u4(4)
Cisco Nx Os	Version 6.0(2)u5(1)
Cisco Nx Os	Version 6.0(2)u5(2)
Cisco Nx Os	Version 6.0(2)u5(3)
Cisco Nx Os	Version 6.0(2)u5(4)
Cisco Nx Os	Version 6.0(2)u6(10)
Cisco Nx Os	Version 6.0(2)u6(10a)
Cisco Nx Os	Version 6.0(2)u6(1)
Cisco Nx Os	Version 6.0(2)u6(1a)
Cisco Nx Os	Version 6.0(2)u6(2)
Cisco Nx Os	Version 6.0(2)u6(2a)
Cisco Nx Os	Version 6.0(2)u6(3)
Cisco Nx Os	Version 6.0(2)u6(3a)
Cisco Nx Os	Version 6.0(2)u6(4)
Cisco Nx Os	Version 6.0(2)u6(4a)
Cisco Nx Os	Version 6.0(2)u6(5)
Cisco Nx Os	Version 6.0(2)u6(5a)
Cisco Nx Os	Version 6.0(2)u6(5b)
Cisco Nx Os	Version 6.0(2)u6(5c)
Cisco Nx Os	Version 6.0(2)u6(6)
Cisco Nx Os	Version 6.0(2)u6(7)
Cisco Nx Os	Version 6.0(2)u6(8)
Cisco Nx Os	Version 6.0(2)u6(9)
Cisco Nx Os	Version 7.0(3)f3(2)
Cisco Nx Os	Version 7.0(3)i7(6z)
Cisco Nx Os	Version 7.0(3)im7(2)

Running on/with	Platform Versions
Cisco Nexus 3016	All versions
Cisco Nexus 3016q	All versions
Cisco Nexus 3048	All versions
Cisco Nexus 3064	All versions
Cisco Nexus 3064 32t	All versions
Cisco Nexus 3064 T	All versions
Cisco Nexus 3064 X	All versions
Cisco Nexus 3064t	All versions
Cisco Nexus 3064x	All versions
Cisco Nexus 3100 V	All versions
Cisco Nexus 3100 Z	All versions
Cisco Nexus 3100v	All versions
Cisco Nexus 31108pc V	All versions
Cisco Nexus 31108pv V	All versions
Cisco Nexus 31108tc V	All versions
Cisco Nexus 31128pq	All versions
Cisco Nexus 3132c Z	All versions
Cisco Nexus 3132q	All versions
Cisco Nexus 3132q V	All versions
Cisco Nexus 3132q X	All versions
Cisco Nexus 3132q Xl	All versions
Cisco Nexus 3164q	All versions
Cisco Nexus 3172	All versions
Cisco Nexus 3172pq	All versions
Cisco Nexus 3172pq Xl	All versions
Cisco Nexus 3172tq	All versions
Cisco Nexus 3172tq 32t	All versions
Cisco Nexus 3172tq Xl	All versions
Cisco Nexus 3232c	All versions
Cisco Nexus 3264c E	All versions
Cisco Nexus 3264q	All versions
Cisco Nexus 3408 S	All versions
Cisco Nexus 34180yc	All versions
Cisco Nexus 34200yc Sm	All versions
Cisco Nexus 3432d S	All versions
Cisco Nexus 3464c	All versions
Cisco Nexus 3524	All versions
Cisco Nexus 3524 X	All versions
Cisco Nexus 3524 Xl	All versions
Cisco Nexus 3548	All versions
Cisco Nexus 3548 X	All versions
Cisco Nexus 3548 Xl	All versions
Cisco Nexus 36180yc R	All versions
Cisco Nexus 3636c R	All versions

Configuration D

54 vulnerable · 5 platform

Vulnerable Software	Affected Versions
Cisco Nx Os	Version 7.0(0)n1(1)
Cisco Nx Os	Version 7.0(1)n1(1)
Cisco Nx Os	Version 7.0(2)n1(1)
Cisco Nx Os	Version 7.0(3)n1(1)
Cisco Nx Os	Version 7.0(4)n1(1)
Cisco Nx Os	Version 7.0(4)n1(1a)
Cisco Nx Os	Version 7.0(5)n1(1)
Cisco Nx Os	Version 7.0(5)n1(1a)
Cisco Nx Os	Version 7.0(6)n1(1)
Cisco Nx Os	Version 7.0(6)n1(2s)
Cisco Nx Os	Version 7.0(6)n1(3s)
Cisco Nx Os	Version 7.0(6)n1(4s)
Cisco Nx Os	Version 7.0(7)n1(1)
Cisco Nx Os	Version 7.0(7)n1(1a)
Cisco Nx Os	Version 7.0(7)n1(1b)
Cisco Nx Os	Version 7.0(8)n1(1)
Cisco Nx Os	Version 7.0(8)n1(1a)
Cisco Nx Os	Version 7.1(0)n1(1)
Cisco Nx Os	Version 7.1(0)n1(1a)
Cisco Nx Os	Version 7.1(0)n1(1b)
Cisco Nx Os	Version 7.1(1)n1(1)
Cisco Nx Os	Version 7.1(1)n1(1a)
Cisco Nx Os	Version 7.1(2)n1(1)
Cisco Nx Os	Version 7.1(2)n1(1a)
Cisco Nx Os	Version 7.1(3)n1(1)
Cisco Nx Os	Version 7.1(3)n1(2)
Cisco Nx Os	Version 7.1(3)n1(2a)
Cisco Nx Os	Version 7.1(3)n1(3)
Cisco Nx Os	Version 7.1(3)n1(4)
Cisco Nx Os	Version 7.1(3)n1(5)
Cisco Nx Os	Version 7.1(4)n1(1)
Cisco Nx Os	Version 7.1(4)n1(1a)
Cisco Nx Os	Version 7.1(4)n1(1c)
Cisco Nx Os	Version 7.1(4)n1(1d)
Cisco Nx Os	Version 7.1(5)n1(1)
Cisco Nx Os	Version 7.1(5)n1(1b)
Cisco Nx Os	Version 7.2(0)n1(1)
Cisco Nx Os	Version 7.2(1)n1(1)
Cisco Nx Os	Version 7.3(0)n1(1)
Cisco Nx Os	Version 7.3(0)n1(1a)
Cisco Nx Os	Version 7.3(0)n1(1b)
Cisco Nx Os	Version 7.3(1)n1(1)
Cisco Nx Os	Version 7.3(2)n1(1)
Cisco Nx Os	Version 7.3(2)n1(1b)
Cisco Nx Os	Version 7.3(2)n1(1c)
Cisco Nx Os	Version 7.3(3)n1(1)
Cisco Nx Os	Version 7.3(4)n1(1)
Cisco Nx Os	Version 7.3(4)n1(1a)
Cisco Nx Os	Version 7.3(5)n1(1)
Cisco Nx Os	Version 7.3(6)n1(1)
Cisco Nx Os	Version 7.3(6)n1(1a)
Cisco Nx Os	Version 7.3(7)n1(1)
Cisco Nx Os	Version 7.3(7)n1(1a)
Cisco Nx Os	Version 7.3(7)n1(1b)

Running on/with	Platform Versions
Cisco Nexus 6001	All versions
Cisco Nexus 6001p	All versions
Cisco Nexus 6001t	All versions
Cisco Nexus 6004	All versions
Cisco Nexus 6004x	All versions

Configuration E

31 vulnerable · 10 platform

Vulnerable Software	Affected Versions
Cisco Nx Os	Version 7.2(0)d1(1)
Cisco Nx Os	Version 7.2(1)d1(1)
Cisco Nx Os	Version 7.2(2)d1(1)
Cisco Nx Os	Version 7.2(2)d1(2)
Cisco Nx Os	Version 7.2(2)d1(3)
Cisco Nx Os	Version 7.2(2)d1(4)
Cisco Nx Os	Version 7.3(0)d1(1)
Cisco Nx Os	Version 7.3(0)dx(1)
Cisco Nx Os	Version 7.3(1)d1(1)
Cisco Nx Os	Version 7.3(2)d1(1)
Cisco Nx Os	Version 7.3(2)d1(1d)
Cisco Nx Os	Version 7.3(2)d1(2)
Cisco Nx Os	Version 7.3(2)d1(3)
Cisco Nx Os	Version 7.3(2)d1(3a)
Cisco Nx Os	Version 7.3(3)d1(1)
Cisco Nx Os	Version 7.3(4)d1(1)
Cisco Nx Os	Version 7.3(5)d1(1)
Cisco Nx Os	Version 7.3(6)d1(1)
Cisco Nx Os	Version 8.0(1)
Cisco Nx Os	Version 8.1(1)
Cisco Nx Os	Version 8.1(2)
Cisco Nx Os	Version 8.1(2a)
Cisco Nx Os	Version 8.2(1)
Cisco Nx Os	Version 8.2(2)
Cisco Nx Os	Version 8.2(3)
Cisco Nx Os	Version 8.2(4)
Cisco Nx Os	Version 8.2(5)
Cisco Nx Os	Version 8.3(1)
Cisco Nx Os	Version 8.3(2)
Cisco Nx Os	Version 8.4(1)
Cisco Nx Os	Version 8.4(2)

Running on/with	Platform Versions
Cisco Nexus 7000	All versions
Cisco Nexus 7004	All versions
Cisco Nexus 7009	All versions
Cisco Nexus 7010	All versions
Cisco Nexus 7018	All versions
Cisco Nexus 7700	All versions
Cisco Nexus 7702	All versions
Cisco Nexus 7706	All versions
Cisco Nexus 7710	All versions
Cisco Nexus 7718	All versions

Configuration F

66 vulnerable · 48 platform

Vulnerable Software	Affected Versions
Cisco Nx Os	Version 7.0(3)f1(1)
Cisco Nx Os	Version 7.0(3)f2(1)
Cisco Nx Os	Version 7.0(3)f2(2)
Cisco Nx Os	Version 7.0(3)f3(1)
Cisco Nx Os	Version 7.0(3)f3(3)
Cisco Nx Os	Version 7.0(3)f3(3a)
Cisco Nx Os	Version 7.0(3)f3(3c)
Cisco Nx Os	Version 7.0(3)f3(4)
Cisco Nx Os	Version 7.0(3)f3(5)
Cisco Nx Os	Version 7.0(3)i2(1)
Cisco Nx Os	Version 7.0(3)i2(1a)
Cisco Nx Os	Version 7.0(3)i2(2)
Cisco Nx Os	Version 7.0(3)i2(2a)
Cisco Nx Os	Version 7.0(3)i2(2b)
Cisco Nx Os	Version 7.0(3)i2(2c)
Cisco Nx Os	Version 7.0(3)i2(2d)
Cisco Nx Os	Version 7.0(3)i2(2e)
Cisco Nx Os	Version 7.0(3)i2(2r)
Cisco Nx Os	Version 7.0(3)i2(2s)
Cisco Nx Os	Version 7.0(3)i2(2v)
Cisco Nx Os	Version 7.0(3)i2(2w)
Cisco Nx Os	Version 7.0(3)i2(2x)
Cisco Nx Os	Version 7.0(3)i2(2y)
Cisco Nx Os	Version 7.0(3)i2(3)
Cisco Nx Os	Version 7.0(3)i2(4)
Cisco Nx Os	Version 7.0(3)i2(5)
Cisco Nx Os	Version 7.0(3)i3(1)
Cisco Nx Os	Version 7.0(3)i4(1)
Cisco Nx Os	Version 7.0(3)i4(1t)
Cisco Nx Os	Version 7.0(3)i4(2)
Cisco Nx Os	Version 7.0(3)i4(3)
Cisco Nx Os	Version 7.0(3)i4(4)
Cisco Nx Os	Version 7.0(3)i4(5)
Cisco Nx Os	Version 7.0(3)i4(6)
Cisco Nx Os	Version 7.0(3)i4(6t)
Cisco Nx Os	Version 7.0(3)i4(7)
Cisco Nx Os	Version 7.0(3)i4(8)
Cisco Nx Os	Version 7.0(3)i4(8a)
Cisco Nx Os	Version 7.0(3)i4(8b)
Cisco Nx Os	Version 7.0(3)i4(8z)
Cisco Nx Os	Version 7.0(3)i4(9)
Cisco Nx Os	Version 7.0(3)i5(1)
Cisco Nx Os	Version 7.0(3)i5(2)
Cisco Nx Os	Version 7.0(3)i5(3)
Cisco Nx Os	Version 7.0(3)i5(3a)
Cisco Nx Os	Version 7.0(3)i5(3b)
Cisco Nx Os	Version 7.0(3)i6(1)
Cisco Nx Os	Version 7.0(3)i6(2)
Cisco Nx Os	Version 7.0(3)i7(1)
Cisco Nx Os	Version 7.0(3)i7(2)
Cisco Nx Os	Version 7.0(3)i7(3)
Cisco Nx Os	Version 7.0(3)i7(3z)
Cisco Nx Os	Version 7.0(3)i7(4)
Cisco Nx Os	Version 7.0(3)i7(5)
Cisco Nx Os	Version 7.0(3)i7(5a)
Cisco Nx Os	Version 7.0(3)i7(6)
Cisco Nx Os	Version 7.0(3)i7(7)
Cisco Nx Os	Version 7.0(3)i7(8)
Cisco Nx Os	Version 7.0(3)ia7(1)
Cisco Nx Os	Version 7.0(3)ia7(2)
Cisco Nx Os	Version 7.0(3)ic4(4)
Cisco Nx Os	Version 7.0(3)im3(1)
Cisco Nx Os	Version 7.0(3)im3(2)
Cisco Nx Os	Version 7.0(3)im3(2a)
Cisco Nx Os	Version 7.0(3)im3(2b)
Cisco Nx Os	Version 7.0(3)im3(3)

Running on/with	Platform Versions
Cisco Nexus 9000v	All versions
Cisco Nexus 92160yc X	All versions
Cisco Nexus 92160yc Switch	All versions
Cisco Nexus 9221c	All versions
Cisco Nexus 92300yc	All versions
Cisco Nexus 92304qc	All versions
Cisco Nexus 92348gc X	All versions
Cisco Nexus 9236c	All versions
Cisco Nexus 9272q	All versions
Cisco Nexus 93108tc Ex	All versions
Cisco Nexus 93108tc Ex 24	All versions
Cisco Nexus 93108tc Fx	All versions
Cisco Nexus 93108tc Fx 24	All versions
Cisco Nexus 93108tc Fx3p	All versions
Cisco Nexus 93120tx	All versions
Cisco Nexus 93128	All versions
Cisco Nexus 93128tx	All versions
Cisco Nexus 9316d Gx	All versions
Cisco Nexus 93180lc Ex	All versions
Cisco Nexus 93180tc Ex	All versions
Cisco Nexus 93180yc Ex	All versions
Cisco Nexus 93180yc Ex 24	All versions
Cisco Nexus 93180yc Fx	All versions
Cisco Nexus 93180yc Fx 24	All versions
Cisco Nexus 93180yc Fx3	All versions
Cisco Nexus 93180yc Fx3s	All versions
Cisco Nexus 93216tc Fx2	All versions
Cisco Nexus 93240yc Fx2	All versions
Cisco Nexus 9332c	All versions
Cisco Nexus 9332pq	All versions
Cisco Nexus 93360yc Fx2	All versions
Cisco Nexus 9336c Fx2	All versions
Cisco Nexus 9336c Fx2 E	All versions
Cisco Nexus 9336pq	All versions
Cisco Nexus 9348gc Fxp	All versions
Cisco Nexus 93600cd Gx	All versions
Cisco Nexus 9364c	All versions
Cisco Nexus 9364c Gx	All versions
Cisco Nexus 9372px	All versions
Cisco Nexus 9372px E	All versions
Cisco Nexus 9372tx	All versions
Cisco Nexus 9372tx E	All versions
Cisco Nexus 9396px	All versions
Cisco Nexus 9396tx	All versions
Cisco Nexus 9500r	All versions
Cisco Nexus 9504	All versions
Cisco Nexus 9508	All versions
Cisco Nexus 9516	All versions

Related CWEs

CWE-401

Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

References (2)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipv6-netstack-edXPGV7K

Source: psirt@cisco.com

Vendor Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipv6-netstack-edXPGV7K

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.