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HistoryOct 16, 2020 - 9:15 p.m.
CVE-2020-1661
cve-2020-1661
juniper networks
junos os
dhcp
jdhcp
dos
vulnerability
security
nvd
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
39.7%
On Juniper Networks Junos OS devices configured as a DHCP forwarder, the Juniper Networks Dynamic Host Configuration Protocol Daemon (jdhcp) process might crash when receiving a malformed DHCP packet. This issue only affects devices configured as DHCP forwarder with forward-only option, that forward specified DHCP client packets, without creating a new subscriber session. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of the malformed DHCP packet will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. This issue can be triggered only by DHCPv4, it cannot be triggered by DHCPv6. This issue affects Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S16; 12.3X48 versions prior to 12.3X48-D105 on SRX Series; 14.1X53 versions prior to 14.1X53-D60 on EX and QFX Series; 15.1 versions prior to 15.1R7-S7; 15.1X49 versions prior to 15.1X49-D221, 15.1X49-D230 on SRX Series; 15.1X53 versions prior to 15.1X53-D593 on EX2300/EX3400; 16.1 versions prior to 16.1R7-S5.
Affected configurations
Node
juniperjunosMatch12.3-
ORjuniperjunosMatch12.3r1
ORjuniperjunosMatch12.3r10
ORjuniperjunosMatch12.3r10-s1
ORjuniperjunosMatch12.3r10-s2
ORjuniperjunosMatch12.3r11
ORjuniperjunosMatch12.3r12
ORjuniperjunosMatch12.3r12-s1
ORjuniperjunosMatch12.3r12-s11
ORjuniperjunosMatch12.3r12-s12
ORjuniperjunosMatch12.3r12-s13
ORjuniperjunosMatch12.3r12-s14
ORjuniperjunosMatch12.3r12-s15
ORjuniperjunosMatch12.3r12-s3
ORjuniperjunosMatch12.3r12-s4
ORjuniperjunosMatch12.3r12-s6
ORjuniperjunosMatch12.3r12-s8
ORjuniperjunosMatch12.3r2
ORjuniperjunosMatch12.3r3
ORjuniperjunosMatch12.3r4
ORjuniperjunosMatch12.3r5
ORjuniperjunosMatch12.3r6
ORjuniperjunosMatch12.3r7
ORjuniperjunosMatch12.3r8
ORjuniperjunosMatch12.3r9
ORjuniperjunosMatch15.1-
ORjuniperjunosMatch15.1a1
ORjuniperjunosMatch15.1f
ORjuniperjunosMatch15.1f1
ORjuniperjunosMatch15.1f2
ORjuniperjunosMatch15.1f2-s1
ORjuniperjunosMatch15.1f2-s2
ORjuniperjunosMatch15.1f2-s3
ORjuniperjunosMatch15.1f2-s4
ORjuniperjunosMatch15.1f3
ORjuniperjunosMatch15.1f4
ORjuniperjunosMatch15.1f5
ORjuniperjunosMatch15.1f5-s7
ORjuniperjunosMatch15.1f6
ORjuniperjunosMatch15.1f6-s1
ORjuniperjunosMatch15.1f6-s12
ORjuniperjunosMatch15.1f6-s2
ORjuniperjunosMatch15.1f6-s3
ORjuniperjunosMatch15.1f6-s4
ORjuniperjunosMatch15.1f6-s7
ORjuniperjunosMatch15.1f7
ORjuniperjunosMatch15.1r1
ORjuniperjunosMatch15.1r2
ORjuniperjunosMatch15.1r3
ORjuniperjunosMatch15.1r4
ORjuniperjunosMatch15.1r4-s7
ORjuniperjunosMatch15.1r4-s8
ORjuniperjunosMatch15.1r4-s9
ORjuniperjunosMatch15.1r5
ORjuniperjunosMatch15.1r5-s1
ORjuniperjunosMatch15.1r5-s5
ORjuniperjunosMatch15.1r5-s6
ORjuniperjunosMatch15.1r6
ORjuniperjunosMatch15.1r6-s1
ORjuniperjunosMatch15.1r6-s2
ORjuniperjunosMatch15.1r6-s6
ORjuniperjunosMatch15.1r7
ORjuniperjunosMatch15.1r7-s1
ORjuniperjunosMatch15.1r7-s2
ORjuniperjunosMatch15.1r7-s3
ORjuniperjunosMatch15.1r7-s4
ORjuniperjunosMatch15.1r7-s5
ORjuniperjunosMatch15.1r7-s6
ORjuniperjunosMatch16.1-
ORjuniperjunosMatch16.1r1
ORjuniperjunosMatch16.1r2
ORjuniperjunosMatch16.1r3
ORjuniperjunosMatch16.1r3-s10
ORjuniperjunosMatch16.1r3-s11
ORjuniperjunosMatch16.1r4
ORjuniperjunosMatch16.1r4-s12
ORjuniperjunosMatch16.1r4-s2
ORjuniperjunosMatch16.1r4-s3
ORjuniperjunosMatch16.1r4-s4
ORjuniperjunosMatch16.1r4-s6
ORjuniperjunosMatch16.1r5
ORjuniperjunosMatch16.1r5-s4
ORjuniperjunosMatch16.1r6-s1
ORjuniperjunosMatch16.1r6-s6
ORjuniperjunosMatch16.1r7
ORjuniperjunosMatch16.1r7-s2
ORjuniperjunosMatch16.1r7-s3
ORjuniperjunosMatch16.1r7-s4
Node
juniperjunosMatch12.3x48-
ORjuniperjunosMatch12.3x48d10
ORjuniperjunosMatch12.3x48d100
ORjuniperjunosMatch12.3x48d15
ORjuniperjunosMatch12.3x48d20
ORjuniperjunosMatch12.3x48d25
ORjuniperjunosMatch12.3x48d30
ORjuniperjunosMatch12.3x48d35
ORjuniperjunosMatch12.3x48d40
ORjuniperjunosMatch12.3x48d45
ORjuniperjunosMatch12.3x48d50
ORjuniperjunosMatch12.3x48d51
ORjuniperjunosMatch12.3x48d55
ORjuniperjunosMatch12.3x48d60
ORjuniperjunosMatch12.3x48d65
ORjuniperjunosMatch12.3x48d70
ORjuniperjunosMatch12.3x48d75
ORjuniperjunosMatch12.3x48d80
ORjuniperjunosMatch12.3x48d90
ORjuniperjunosMatch12.3x48d95
ORjuniperjunosMatch15.1x49-
ORjuniperjunosMatch15.1x49d10
ORjuniperjunosMatch15.1x49d100
ORjuniperjunosMatch15.1x49d110
ORjuniperjunosMatch15.1x49d120
ORjuniperjunosMatch15.1x49d130
ORjuniperjunosMatch15.1x49d140
ORjuniperjunosMatch15.1x49d15
ORjuniperjunosMatch15.1x49d150
ORjuniperjunosMatch15.1x49d160
ORjuniperjunosMatch15.1x49d170
ORjuniperjunosMatch15.1x49d180
ORjuniperjunosMatch15.1x49d190
ORjuniperjunosMatch15.1x49d20
ORjuniperjunosMatch15.1x49d200
ORjuniperjunosMatch15.1x49d210
ORjuniperjunosMatch15.1x49d25
ORjuniperjunosMatch15.1x49d30
ORjuniperjunosMatch15.1x49d35
ORjuniperjunosMatch15.1x49d40
ORjuniperjunosMatch15.1x49d45
ORjuniperjunosMatch15.1x49d50
ORjuniperjunosMatch15.1x49d55
ORjuniperjunosMatch15.1x49d60
ORjuniperjunosMatch15.1x49d65
ORjuniperjunosMatch15.1x49d70
ORjuniperjunosMatch15.1x49d75
ORjuniperjunosMatch15.1x49d80
ORjuniperjunosMatch15.1x49d90
junipersrx1500Match-
ORjunipersrx300Match-
ORjunipersrx320Match-
ORjunipersrx340Match-
ORjunipersrx345Match-
ORjunipersrx380Match-
ORjunipersrx4100Match-
ORjunipersrx4200Match-
ORjunipersrx4600Match-
ORjunipersrx5400Match-
ORjunipersrx550Match-
ORjunipersrx5600Match-
ORjunipersrx5800Match-
Node
juniperjunosMatch15.1x53-
ORjuniperjunosMatch15.1x53d10
ORjuniperjunosMatch15.1x53d20
ORjuniperjunosMatch15.1x53d21
ORjuniperjunosMatch15.1x53d210
ORjuniperjunosMatch15.1x53d230
ORjuniperjunosMatch15.1x53d231
ORjuniperjunosMatch15.1x53d232
ORjuniperjunosMatch15.1x53d233
ORjuniperjunosMatch15.1x53d234
ORjuniperjunosMatch15.1x53d235
ORjuniperjunosMatch15.1x53d236
ORjuniperjunosMatch15.1x53d237
ORjuniperjunosMatch15.1x53d25
ORjuniperjunosMatch15.1x53d30
ORjuniperjunosMatch15.1x53d31
ORjuniperjunosMatch15.1x53d32
ORjuniperjunosMatch15.1x53d33
ORjuniperjunosMatch15.1x53d34
ORjuniperjunosMatch15.1x53d40
ORjuniperjunosMatch15.1x53d45
ORjuniperjunosMatch15.1x53d47
ORjuniperjunosMatch15.1x53d470
ORjuniperjunosMatch15.1x53d48
ORjuniperjunosMatch15.1x53d495
ORjuniperjunosMatch15.1x53d50
ORjuniperjunosMatch15.1x53d51
ORjuniperjunosMatch15.1x53d52
ORjuniperjunosMatch15.1x53d55
ORjuniperjunosMatch15.1x53d56
ORjuniperjunosMatch15.1x53d57
ORjuniperjunosMatch15.1x53d58
ORjuniperjunosMatch15.1x53d59
ORjuniperjunosMatch15.1x53d590
ORjuniperjunosMatch15.1x53d591
ORjuniperjunosMatch15.1x53d592
ORjuniperjunosMatch15.1x53d60
ORjuniperjunosMatch15.1x53d61
ORjuniperjunosMatch15.1x53d62
ORjuniperjunosMatch15.1x53d63
ORjuniperjunosMatch15.1x53d64
ORjuniperjunosMatch15.1x53d65
ORjuniperjunosMatch15.1x53d66
ORjuniperjunosMatch15.1x53d67
ORjuniperjunosMatch15.1x53d68
ORjuniperjunosMatch15.1x53d69
ORjuniperjunosMatch15.1x53d70
juniperex2300Match-
ORjuniperex3400Match-
Node
juniperjunosMatch14.1x53-
ORjuniperjunosMatch14.1x53d10
ORjuniperjunosMatch14.1x53d15
ORjuniperjunosMatch14.1x53d16
ORjuniperjunosMatch14.1x53d25
ORjuniperjunosMatch14.1x53d26
ORjuniperjunosMatch14.1x53d27
ORjuniperjunosMatch14.1x53d30
ORjuniperjunosMatch14.1x53d34
ORjuniperjunosMatch14.1x53d35
ORjuniperjunosMatch14.1x53d40
ORjuniperjunosMatch14.1x53d42
ORjuniperjunosMatch14.1x53d43
ORjuniperjunosMatch14.1x53d44
ORjuniperjunosMatch14.1x53d45
ORjuniperjunosMatch14.1x53d48
ORjuniperjunosMatch14.1x53d50
ORjuniperjunosMatch14.1x53d51
ORjuniperjunosMatch14.1x53d52
ORjuniperjunosMatch14.1x53d53
juniperex2300Match-
ORjuniperex2300-cMatch-
ORjuniperex3400Match-
ORjuniperex4300Match-
ORjuniperex4600Match-
ORjuniperex4650Match-
ORjuniperex9200Match-
ORjuniperex9250Match-
ORjuniperqfx10002Match-
ORjuniperqfx10008Match-
ORjuniperqfx10016Match-
ORjuniperqfx5100Match-
ORjuniperqfx5110Match-
ORjuniperqfx5120Match-
ORjuniperqfx5130Match-
ORjuniperqfx5200Match-
ORjuniperqfx5210Match-
ORjuniperqfx5220Match-
| CPE | Name | Operator | Version |
|---|---|---|---|
| juniper:junos | juniper junos | eq | 12.3 |
| juniper:junos | juniper junos | eq | 15.1 |
| juniper:junos | juniper junos | eq | 16.1 |
CNA Affected
[
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "12.3R12-S16",
"status": "affected",
"version": "12.3",
"versionType": "custom"
},
{
"lessThan": "15.1R7-S7",
"status": "affected",
"version": "15.1",
"versionType": "custom"
},
{
"lessThan": "16.1R7-S5",
"status": "affected",
"version": "16.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"SRX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "12.3X48-D105",
"status": "affected",
"version": "12.3X48",
"versionType": "custom"
},
{
"lessThan": "15.1X49-D221, 15.1X49-D230",
"status": "affected",
"version": "15.1X49",
"versionType": "custom"
}
]
},
{
"platforms": [
"EX and QFX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "14.1X53-D60",
"status": "affected",
"version": "14.1X53",
"versionType": "custom"
}
]
},
{
"platforms": [
"EX2300/EX3400"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "15.1X53-D593",
"status": "affected",
"version": "15.1X53",
"versionType": "custom"
}
]
}
]References
Related
cvelist
cvelist
prion
prion
Design/Logic Flaw
2020-10-16 21:15:00
nvd
nvd
CVE-2020-1661
2020-10-16 21:15:12
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
39.7%
Related for CVE-2020-1661