CVE-2021-1387Missing Release of Memory after Effective Lifetime in Cisco Unified Computing System

Severity
8.6HIGHNVD
EPSS
0.9%
top 23.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedFeb 24
Latest updateMay 24

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages3 packages

NVDcisco/unified_computing_system4.04.0\(4k\)+1
NVDcisco/nx-os239 versions+238

🔴Vulnerability Details

2
GHSA
GHSA-78w3-6j2r-h8rq: A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condit2022-05-24
CVEList
Cisco NX-OS Software IPv6 Netstack Denial of Service Vulnerability2021-02-24

📋Vendor Advisories

1
Cisco
Cisco NX-OS Software IPv6 Netstack Denial of Service Vulnerability2021-02-24

🕵️Threat Intelligence

2
Talos
Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution2022-01-11
Talos
Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution2022-01-11