CVE-2022-20946 — Heap-based Buffer Overflow in Cisco Firepower Threat Defense

CWE-122 — Heap-based Buffer OverflowCWE-787 — Out-of-bounds Write4 documents4 sources
Severity
7.5HIGHNVD
CNA8.6
EPSS
1.4%
top 19.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Firepower Threat DefenseCisco Firepower Threat Defense Software
Timeline
PublishedNov 15
Latest updateNov 16

Description

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. This vulnerability is due to a memory handling error that occurs when GRE traffic is processed. An attacker could exploit this vulnerability by sending a crafted GRE payload through an affected device. A successful exploit could allow the attacker…

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/firepower_threat_defense6.3.0 — 6.3.0.5+8

🔴Vulnerability Details

2
GHSA
GHSA-g6x8-jxpj-jmgj: A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow a↗2022-11-16
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CVEList
CVE-2022-20946: A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow a↗2022-11-10
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📋Vendor Advisories

1
Cisco
Cisco Firepower Threat Defense Software Generic Routing Encapsulation Denial of Service Vulnerability↗2022-11-09
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CVE-2022-20946 — Heap-based Buffer Overflow in Cisco | cvebase