Cisco Firepower Threat Defense GRE Tunnel Decapsulation IPv6 Packet double free

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Cisco Firepower Threat Defense. Impacted is an unknown function of the component GRE Tunnel Decapsulation. Performing a manipulation as part of IPv6 Packet results in double free. This vulnerability is reported as CVE-2020-3179. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Firepower Threat Defense (Firewall Software) (version now known). It has been classified as critical. This affects some unknown processing of the component GRE Tunnel Decapsulation. The manipulation as part of a IPv6 Packet leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on availability. The summary by CVE is:

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.

The weakness was disclosed 05/06/2020 as cisco-sa-ftd-dos-2-sS2h7aWe as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2020-3179 since 12/12/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

The entries VDB-154801, VDB-154800 and VDB-154798 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2019 🔍
05/06/2020 +146 days 🔍
05/07/2020 +1 days 🔍
10/15/2020 +161 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-ftd-dos-2-sS2h7aWe
Status: Confirmed

CVE: CVE-2020-3179 (🔍)
GCVE (CVE): GCVE-0-2020-3179
GCVE (VulDB): GCVE-100-154797
See also: 🔍

Entryinfo

Created: 05/07/2020 07:30
Updated: 10/15/2020 14:54
Changes: 05/07/2020 07:30 (42), 05/07/2020 07:35 (12), 10/15/2020 14:54 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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