CVE-2020-3179

A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory handling error when GRE over IPv6 traffic is processed. An attacker could exploit this vulnerability by sending crafted GRE over IPv6 packets with either IPv4 or IPv6 payload through an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
ciscoCNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 77%
VendorProductVersion
ciscofirepower_threat_defense
6.3.0 ≤
𝑥
< 6.3.0.5
ciscofirepower_threat_defense
6.4.0 ≤
𝑥
< 6.4.0.6
ciscoasa_5505_firmware
9.9\(2\)
ciscoasa_5505_firmware
101.5\(1.26\)
ciscoasa_5510_firmware
9.9\(2\)
ciscoasa_5510_firmware
101.5\(1.26\)
ciscoasa_5512-x_firmware
9.9\(2\)
ciscoasa_5512-x_firmware
101.5\(1.26\)
ciscoasa_5515-x_firmware
9.9\(2\)
ciscoasa_5515-x_firmware
101.5\(1.26\)
ciscoasa_5520_firmware
9.9\(2\)
ciscoasa_5520_firmware
101.5\(1.26\)
ciscoasa_5525-x_firmware
9.9\(2\)
ciscoasa_5525-x_firmware
101.5\(1.26\)
ciscoasa_5540_firmware
9.9\(2\)
ciscoasa_5540_firmware
101.5\(1.26\)
ciscoasa_5545-x_firmware
9.9\(2\)
ciscoasa_5545-x_firmware
101.5\(1.26\)
ciscoasa_5550_firmware
9.9\(2\)
ciscoasa_5550_firmware
101.5\(1.26\)
ciscoasa_5555-x_firmware
9.9\(2\)
ciscoasa_5555-x_firmware
101.5\(1.26\)
ciscoasa_5580_firmware
9.9\(2\)
ciscoasa_5580_firmware
101.5\(1.26\)
ciscoasa_5585-x_firmware
9.9\(2\)
ciscoasa_5585-x_firmware
101.5\(1.26\)
𝑥
= Vulnerable software versions