JuniperCVELIST:CVE-2023-36833CVE-2023-36833 Junos OS Evolved: PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202: The aftman-bt process will crash in a MoFRR scenario after multiple link flaps
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
18.0%
A Use After Free vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS Evolved on PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202 allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).
The process āaftman-btā will crash after multiple flaps on a multicast-only fast reroute (MoFRR) enabled interface. This will cause the respective FPC to stop forwarding traffic and it needs to be rebooted to restore the service.
An indication that the system experienced this issue is the following log message:
<date> <hostname> evo-aftmand-bt[<pid>]: [Error] jexpr_fdb: sanity check failed, ā¦ , app_name L3 Mcast Routes
This issue affects Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10004, PTX10008, PTX10016 with LC1201/1202:
21.2 version 21.2R1-EVO and later versions;
21.3 version 21.3R1-EVO and later versions;
21.4 versions prior to 21.4R3-S3-EVO;
22.1 version 22.1R1-EVO and later versions;
22.2 versions prior to 22.2R3-S2-EVO;
22.3 versions prior to 22.3R3-EVO;
22.4 versions prior to 22.4R1-S2-EVO, 22.4R2-EVO.
CNA Affected
[
{
"defaultStatus": "unaffected",
"platforms": [
"PTX10001-36MR",
"PTX10004",
"PTX10008",
"PTX10016"
],
"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
"versions": [
{
"changes": [
{
"at": "21.2R1-EVO",
"status": "affected"
}
],
"lessThan": "21.2*",
"status": "affected",
"version": "21.2",
"versionType": "custom"
},
{
"changes": [
{
"at": "21.3R1-EVO",
"status": "affected"
}
],
"lessThan": "21.3*",
"status": "affected",
"version": "21.3",
"versionType": "custom"
},
{
"lessThan": "21.4R3-S3-EVO",
"status": "affected",
"version": "21.4",
"versionType": "custom"
},
{
"changes": [
{
"at": "22.1R1-EVO",
"status": "affected"
}
],
"lessThan": "22.1*",
"status": "affected",
"version": "22.1",
"versionType": "custom"
},
{
"lessThan": "22.2R3-S2-EVO",
"status": "affected",
"version": "22.2",
"versionType": "custom"
},
{
"lessThan": "22.3R3-EVO",
"status": "affected",
"version": "22.3",
"versionType": "custom"
},
{
"lessThan": "22.4R1-S2-EVO, 22.4R2-EVO",
"status": "affected",
"version": "22.4",
"versionType": "custom"
}
]
}
]References
Related
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
18.0%