CVE-2021-40114

Name
CVE-2021-40114
Description
Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-s2R7W9UU

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:*:*:*:*:*:*:* firepower_management_center == None == 2.9.14.0
cpe:2.3:a:cisco:firepower_management_center:2.9.15:*:*:*:*:*:*:* firepower_management_center == None == 2.9.15
cpe:2.3:a:cisco:firepower_management_center:2.9.16:*:*:*:*:*:*:* firepower_management_center == None == 2.9.16
cpe:2.3:a:cisco:firepower_management_center:2.9.17:*:*:*:*:*:*:* firepower_management_center == None == 2.9.17
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* firepower_threat_defense >= None < 6.4.0.12
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* firepower_threat_defense >= 6.5.0 < 6.6.3
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* firepower_threat_defense >= 6.7.0 < 6.7.0.2
cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:* unified_threat_defense >= 16.12 < 16.12.6
cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:* unified_threat_defense >= 17.3 < 17.3.4a
cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:* unified_threat_defense >= 17.4 < 17.4.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
snort 3.15-main 2.9.18-r0 Natanael Copa <ncopa@alpinelinux.org> fixed