CVE-2023-36836
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.8 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.2%
A Use of an Uninitialized Resource vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with low privileges to cause a Denial of Service (DoS).
On all Junos OS and Junos OS Evolved platforms, in a Multicast only Fast Reroute (MoFRR) scenario, the rpd process can crash when a a specific low privileged CLI command is executed. The rpd crash will impact all routing protocols until the process has automatically been restarted. As the operational state which makes this issue exploitable is outside the attackers control, this issue is considered difficult to exploit. Continued execution of this command will lead to a sustained DoS.
This issue affects:
Juniper Networks Junos OS
19.4 version 19.4R3-S5 and later versions prior to 19.4R3-S9;
20.1 version 20.1R2 and later versions;
20.2 versions prior to 20.2R3-S7;
20.3 versions prior to 20.3R3-S5;
20.4 versions prior to 20.4R3-S6;
21.1 versions prior to 21.1R3-S4;
21.2 versions prior to 21.2R3-S2;
21.3 versions prior to 21.3R3-S1;
21.4 versions prior to 21.4R3;
22.1 versions prior to 22.1R1-S2, 22.1R2;
22.2 versions prior to 22.2R2.
Juniper Networks Junos OS Evolved
All versions prior to 20.4R3-S6-EVO;
21.1-EVO version 21.1R1-EVO and later versions;
21.2-EVO version 21.2R1-EVO and later versions;
21.3-EVO versions prior to 21.3R3-S1-EVO;
21.4-EVO versions prior to 21.4R3-EVO;
22.1-EVO versions prior to 22.1R1-S2-EVO, 22.1R2-EVO;
22.2-EVO versions prior to 22.2R2-EVO.
Affected configurations
CNA Affected
[
{
"defaultStatus": "unaffected",
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"changes": [
{
"at": "19.4R3-S9",
"status": "unaffected"
}
],
"lessThan": "19.4*",
"status": "affected",
"version": "19.4R3-S4",
"versionType": "custom"
},
{
"lessThan": "20.1*",
"status": "affected",
"version": "20.1R2",
"versionType": "custom"
},
{
"lessThan": "20.2R3-S7",
"status": "affected",
"version": "20.2",
"versionType": "custom"
},
{
"lessThan": "20.3R3-S5",
"status": "affected",
"version": "20.3",
"versionType": "custom"
},
{
"lessThan": "20.4R3-S6",
"status": "affected",
"version": "20.4",
"versionType": "custom"
},
{
"lessThan": "21.1R3-S4",
"status": "affected",
"version": "21.1",
"versionType": "custom"
},
{
"lessThan": "21.2R3-S2",
"status": "affected",
"version": "21.2",
"versionType": "custom"
},
{
"lessThan": "21.3R3-S1",
"status": "affected",
"version": "21.3",
"versionType": "custom"
},
{
"lessThan": "21.4R3",
"status": "affected",
"version": "21.4",
"versionType": "custom"
},
{
"lessThan": "22.1R1-S2, 22.1R2",
"status": "affected",
"version": "22.1",
"versionType": "custom"
},
{
"lessThan": "22.2R2",
"status": "affected",
"version": "22.2",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.4R3-S6-EVO",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
},
{
"changes": [
{
"at": "21.1R1-EVO",
"status": "affected"
}
],
"lessThan": "21.1*",
"status": "affected",
"version": "21.1",
"versionType": "custom"
},
{
"changes": [
{
"at": "21.2R1-EVO",
"status": "affected"
}
],
"lessThan": "21.2*",
"status": "affected",
"version": "21.2",
"versionType": "custom"
},
{
"lessThan": "21.3R3-S1-EVO",
"status": "affected",
"version": "21.3",
"versionType": "custom"
},
{
"lessThan": "21.4R3-EVO",
"status": "affected",
"version": "21.4",
"versionType": "custom"
},
{
"lessThan": "22.1R1-S2-EVO, 22.1R2-EVO",
"status": "affected",
"version": "22.1",
"versionType": "custom"
},
{
"lessThan": "22.2R2-EVO",
"status": "affected",
"version": "22.2",
"versionType": "custom"
}
]
}
]References
Related
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.8 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.2%