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HistoryJul 18, 2022 - 5:15 p.m.
CVE-2021-42755
cve-2021-42755
integer overflow
fortiswitch
fortirecorder
fortios
fortiproxy
fortivoiceenterprise
cwe-190
vulnerability
nvd
denial of service
4.3 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
4.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
20.0%
An integer overflow / wraparound vulnerability [CWE-190] in FortiSwitch 7.0.2 and below, 6.4.9 and below, 6.2.x, 6.0.x; FortiRecorder 6.4.2 and below, 6.0.10 and below; FortiOS 7.0.2 and below, 6.4.8 and below, 6.2.10 and below, 6.0.x; FortiProxy 7.0.0, 2.0.6 and below, 1.2.x, 1.1.x, 1.0.x; FortiVoiceEnterprise 6.4.3 and below, 6.0.10 and below dhcpd daemon may allow an unauthenticated and network adjacent attacker to crash the dhcpd deamon, resulting in potential denial of service.
Affected configurations
Node
fortinetfortiproxyRange1.0.0–1.0.7
ORfortinetfortiproxyRange1.1.0–1.1.6
ORfortinetfortiproxyRange1.2.0–1.2.13
ORfortinetfortiproxyRange2.0.0–2.0.6
ORfortinetfortiproxyMatch7.0.0
ORfortinetfortivoiceMatch5.3.0
ORfortinetfortivoiceMatch5.3.1
ORfortinetfortivoiceMatch5.3.2
ORfortinetfortivoiceMatch5.3.3
ORfortinetfortivoiceMatch5.3.4
ORfortinetfortivoiceMatch5.3.5
ORfortinetfortivoiceMatch5.3.6
ORfortinetfortivoiceMatch5.3.7
ORfortinetfortivoiceMatch5.3.8
ORfortinetfortivoiceMatch5.3.10
ORfortinetfortivoiceMatch5.3.11
ORfortinetfortivoiceMatch5.3.12
ORfortinetfortivoiceMatch5.3.13
ORfortinetfortivoiceMatch5.3.14
ORfortinetfortivoiceMatch5.3.15
ORfortinetfortivoiceMatch5.3.16
ORfortinetfortivoiceMatch5.3.17
ORfortinetfortivoiceMatch5.3.18
ORfortinetfortivoiceMatch5.3.19
ORfortinetfortivoiceMatch5.3.20
ORfortinetfortivoiceMatch5.3.21
ORfortinetfortivoiceMatch5.3.22
ORfortinetfortivoiceMatch5.3.23
ORfortinetfortivoiceMatch5.3.24
ORfortinetfortivoiceMatch5.3.25
ORfortinetfortivoiceMatch5.3.26
ORfortinetfortivoiceMatch6.0.0
ORfortinetfortivoiceMatch6.0.1
ORfortinetfortivoiceMatch6.0.2
ORfortinetfortivoiceMatch6.0.3
ORfortinetfortivoiceMatch6.0.4
ORfortinetfortivoiceMatch6.0.5
ORfortinetfortivoiceMatch6.0.6
ORfortinetfortivoiceMatch6.0.7
ORfortinetfortivoiceMatch6.0.8
ORfortinetfortivoiceMatch6.0.9
ORfortinetfortivoiceMatch6.0.10
ORfortinetfortivoiceMatch6.4.0
ORfortinetfortivoiceMatch6.4.1
ORfortinetfortivoiceMatch6.4.2
ORfortinetfortivoiceMatch6.4.3
ORfortinetfortiosMatch5.4.0
ORfortinetfortiosMatch5.4.1
ORfortinetfortiosMatch5.4.2
ORfortinetfortiosMatch5.4.3
ORfortinetfortiosMatch5.4.4
ORfortinetfortiosMatch5.4.5
ORfortinetfortiosMatch5.4.6
ORfortinetfortiosMatch5.4.7
ORfortinetfortiosMatch5.4.8
ORfortinetfortiosMatch5.4.9
ORfortinetfortiosMatch5.4.10
ORfortinetfortiosMatch5.4.11
ORfortinetfortiosMatch5.4.12
ORfortinetfortiosMatch5.4.13
ORfortinetfortiosMatch5.6.0
ORfortinetfortiosMatch5.6.1
ORfortinetfortiosMatch5.6.2
ORfortinetfortiosMatch5.6.3
ORfortinetfortiosMatch5.6.4
ORfortinetfortiosMatch5.6.5
ORfortinetfortiosMatch5.6.6
ORfortinetfortiosMatch5.6.7
ORfortinetfortiosMatch5.6.8
ORfortinetfortiosMatch5.6.9
ORfortinetfortiosMatch5.6.10
ORfortinetfortiosMatch5.6.11
ORfortinetfortiosMatch5.6.12
ORfortinetfortiosMatch5.6.13
ORfortinetfortiosMatch5.6.14
ORfortinetfortiosMatch6.0.0
ORfortinetfortiosMatch6.0.1
ORfortinetfortiosMatch6.0.2
ORfortinetfortiosMatch6.0.3
ORfortinetfortiosMatch6.0.4
ORfortinetfortiosMatch6.0.5
ORfortinetfortiosMatch6.0.6
ORfortinetfortiosMatch6.0.7
ORfortinetfortiosMatch6.0.8
ORfortinetfortiosMatch6.0.9
ORfortinetfortiosMatch6.0.10
ORfortinetfortiosMatch6.0.11
ORfortinetfortiosMatch6.0.12
ORfortinetfortiosMatch6.0.13
ORfortinetfortiosMatch6.0.14
ORfortinetfortiosMatch6.2.0
ORfortinetfortiosMatch6.2.1
ORfortinetfortiosMatch6.2.2
ORfortinetfortiosMatch6.2.3
ORfortinetfortiosMatch6.2.4
ORfortinetfortiosMatch6.2.5
ORfortinetfortiosMatch6.2.6
ORfortinetfortiosMatch6.2.7
ORfortinetfortiosMatch6.2.8
ORfortinetfortiosMatch6.2.9
ORfortinetfortiosMatch6.2.10
ORfortinetfortiosMatch6.4.0
ORfortinetfortiosMatch6.4.1
ORfortinetfortiosMatch6.4.2
ORfortinetfortiosMatch6.4.3
ORfortinetfortiosMatch6.4.4
ORfortinetfortiosMatch6.4.5
ORfortinetfortiosMatch6.4.6
ORfortinetfortiosMatch6.4.7
ORfortinetfortiosMatch7.0.0
ORfortinetfortiosMatch7.0.1
ORfortinetfortiosMatch7.0.2
ORfortinetfortirecorder_firmwareMatch6.0.0
ORfortinetfortirecorder_firmwareMatch6.0.1
ORfortinetfortirecorder_firmwareMatch6.0.2
ORfortinetfortirecorder_firmwareMatch6.0.3
ORfortinetfortirecorder_firmwareMatch6.0.4
ORfortinetfortirecorder_firmwareMatch6.0.5
ORfortinetfortirecorder_firmwareMatch6.0.6
ORfortinetfortirecorder_firmwareMatch6.0.7
ORfortinetfortirecorder_firmwareMatch6.0.8
ORfortinetfortirecorder_firmwareMatch6.0.9
ORfortinetfortirecorder_firmwareMatch6.0.10
ORfortinetfortirecorder_firmwareMatch6.4.0
ORfortinetfortirecorder_firmwareMatch6.4.1
ORfortinetfortirecorder_firmwareMatch6.4.2
ORfortinetfortiswitchRange6.0.0–6.0.7
ORfortinetfortiswitchRange6.2.0–6.2.7
ORfortinetfortiswitchRange6.4.0–6.4.9
ORfortinetfortiswitchRange7.0.0–7.0.2
CNA Affected
[
{
"product": "Fortinet FortiSwitch, FortiRecorder, FortiVoiceEnterprise, FortiOS, FortiProxy",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "FortiSwitch 7.0.2 and below, 6.4.9 and below, 6.2.x, 6.0.x; FortiRecorder 6.4.2 and below, 6.0.10 and below; FortiOS 7.0.2 and below, 6.4.8 and below, 6.2.10 and below, 6.0.x; FortiProxy 7.0.0, 2.0.6 and below, 1.2.x, 1.1.x, 1.0.x; FortiVoiceEnterprise 6.4.3 and below, 6.0.10 and below"
}
]
}
]References
Social References
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4.3 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
4.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
20.0%
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