Cisco Firepower Threat Defense Software up to 7.3.1.2 TLS null pointer dereference

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cisco Firepower Threat Defense Software. Affected by this vulnerability is an unknown functionality of the component TLS. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2024-20339. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Cisco Firepower Threat Defense Software. Affected by this vulnerability is an unknown functionality of the component TLS. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.

It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is known as CVE-2024-20339 since 11/08/2023. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Firewall Software

Vendor

• Cisco

Name

• Firepower Threat Defense Software

Version

• 6.2.3
• 6.2.3.1
• 6.2.3.2
• 6.2.3.3
• 6.2.3.4
• 6.2.3.5
• 6.2.3.6
• 6.2.3.7
• 6.2.3.8
• 6.2.3.9
• 6.2.3.10
• 6.2.3.11
• 6.2.3.12
• 6.2.3.13
• 6.2.3.14
• 6.2.3.15
• 6.2.3.16
• 6.2.3.17
• 6.2.3.18
• 6.4.0
• 6.4.0.1
• 6.4.0.2
• 6.4.0.3
• 6.4.0.4
• 6.4.0.5
• 6.4.0.6
• 6.4.0.7
• 6.4.0.8
• 6.4.0.9
• 6.4.0.10
• 6.4.0.11
• 6.4.0.12
• 6.4.0.13
• 6.4.0.14
• 6.4.0.15
• 6.4.0.16
• 6.4.0.17
• 6.6.0
• 6.6.0.1
• 6.6.1
• 6.6.3
• 6.6.4
• 6.6.5
• 6.6.5.1
• 6.6.5.2
• 6.6.7
• 6.6.7.1
• 6.6.7.2
• 6.7.0
• 6.7.0.1
• 6.7.0.2
• 6.7.0.3
• 7.0.0
• 7.0.0.1
• 7.0.1
• 7.0.1.1
• 7.0.2
• 7.0.2.1
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.6.1
• 7.1.0
• 7.1.0.1
• 7.1.0.3
• 7.2.0
• 7.2.0.1
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.4.1
• 7.2.5
• 7.2.5.1
• 7.2.5.2
• 7.3.0
• 7.3.1
• 7.3.1.1
• 7.3.1.2

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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