CVE-2022-20653 — Cisco Asyncos vulnerability

CWE-3994 documents4 sources
Severity
7.5HIGHNVD
EPSS
1.0%
top 23.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco AsyncosCisco Email Security Appliance
Timeline
PublishedFeb 17
Latest updateFeb 18

Description

A vulnerability in the DNS-based Authentication of Named Entities (DANE) email verification component of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error handling in DNS name resolution by the affected software. An attacker could exploit this vulnerability by sending specially formatted email messages that are processed…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDcisco/asyncos13.5.0 — 13.5.4.102+2

🔴Vulnerability Details

2
GHSA
GHSA-p3pv-g3c9-4qf8: A vulnerability in the DNS-based Authentication of Named Entities (DANE) email verification component of Cisco AsyncOS Software for Cisco Email Securi↗2022-02-18
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CVEList
Cisco Email Security Appliance DNS Verification Denial of Service Vulnerability↗2022-02-17
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📋Vendor Advisories

1
Cisco
Cisco Email Security Appliance DNS Verification Denial of Service Vulnerability↗2022-02-16
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CVE-2022-20653 — Cisco Asyncos vulnerability | cvebase