CVE-2022-22249 (GCVE-0-2022-22249)

Vulnerability from cvelistv5 – Published: 2022-10-18 02:46 – Updated: 2025-05-09 15:13
VLAI?
Title
Junos OS: MX Series: An FPC crash might be seen due to mac-moves within the same bridge domain
Summary
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.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • Denial of Service (DoS)
  • CWE-664 - Improper Control of a Resource Through its Lifetime
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: unspecified , < 15.1R7-S13 (custom)
Affected: 19.1 , < 19.1R3-S9 (custom)
Affected: 19.2 , < 19.2R3-S6 (custom)
Affected: 19.3 , < 19.3R3-S6 (custom)
Affected: 19.4 , < 19.4R2-S7, 19.4R3-S8 (custom)
Affected: 20.1R1 , < 20.1* (custom)
Affected: 20.2 , < 20.2R3-S5 (custom)
Affected: 20.3 , < 20.3R3-S5 (custom)
Affected: 20.4 , < 20.4R3-S2 (custom)
Affected: 21.1 , < 21.1R3 (custom)
Affected: 21.2 , < 21.2R3 (custom)
Affected: 21.3 , < 21.3R2 (custom)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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