JuniperCVELIST:CVE-2022-22249CVE-2022-22249 Junos OS: MX Series: An FPC crash might be seen due to mac-moves within the same bridge domain
6.5 Medium
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
0.001 Low
EPSS
Percentile
31.3%
An Improper Control of a Resource Through its Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When there is a continuous mac move a memory corruption causes one or more FPCs to crash and reboot. These MAC moves can be between two local interfaces or between core/EVPN and local interface. The below error logs can be seen in PFE syslog when this issue happens: xss_event_handler(1071): EA[0:0]_PPE 46.xss[0] ADDR Error. ppe_error_interrupt(4298): EA[0:0]_PPE 46 Errors sync xtxn error xss_event_handler(1071): EA[0:0]_PPE 1.xss[0] ADDR Error. ppe_error_interrupt(4298): EA[0:0]_PPE 1 Errors sync xtxn error xss_event_handler(1071): EA[0:0]_PPE 2.xss[0] ADDR Error. This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 15.1R7-S13; 19.1 versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R2-S7, 19.4R3-S8; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2.
CNA Affected
[
{
"vendor": "Juniper Networks",
"product": "Junos OS",
"versions": [
{
"version": "unspecified",
"lessThan": "15.1R7-S13",
"status": "affected",
"versionType": "custom"
},
{
"version": "19.1",
"status": "affected",
"lessThan": "19.1R3-S9",
"versionType": "custom"
},
{
"version": "19.2",
"status": "affected",
"lessThan": "19.2R3-S6",
"versionType": "custom"
},
{
"version": "19.3",
"status": "affected",
"lessThan": "19.3R3-S6",
"versionType": "custom"
},
{
"version": "19.4",
"status": "affected",
"lessThan": "19.4R2-S7, 19.4R3-S8",
"versionType": "custom"
},
{
"version": "20.1R1",
"status": "affected",
"lessThan": "20.1*",
"versionType": "custom"
},
{
"version": "20.2",
"status": "affected",
"lessThan": "20.2R3-S5",
"versionType": "custom"
},
{
"version": "20.3",
"status": "affected",
"lessThan": "20.3R3-S5",
"versionType": "custom"
},
{
"version": "20.4",
"status": "affected",
"lessThan": "20.4R3-S2",
"versionType": "custom"
},
{
"version": "21.1",
"status": "affected",
"lessThan": "21.1R3",
"versionType": "custom"
},
{
"version": "21.2",
"status": "affected",
"lessThan": "21.2R3",
"versionType": "custom"
},
{
"version": "21.3",
"status": "affected",
"lessThan": "21.3R2",
"versionType": "custom"
}
],
"platforms": [
"MX Series"
]
}
]References
Related
6.5 Medium
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
0.001 Low
EPSS
Percentile
31.3%