GHSA-FPXG-3HXF-5MVR

Vulnerability from github – Published: 2024-10-11 18:32 – Updated: 2024-11-08 18:30
VLAI?
Details

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the SRX5K, SRX4600 and MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).

In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes local FPC to eventually run out of memory and crash.  

Below CLI command can be used to check the memory usage over a period of time:

user@host> show chassis fpc

Temp CPU Utilization (%)   CPU Utilization (%) Memory   Utilization (%)   Slot State     (C)  Total  Interrupt     1min   5min   15min DRAM (MB) Heap     Buffer

0 Online       43     41         2                           2048       49         14

1 Online       43     41         2                           2048       49         14

2 Online       43     41         2                           2048       49         14

This issue affects Junos OS on SRX5K, SRX4600 and MX Series: 

  • All versions before 21.2R3-S7, 
  • from 21.4 before 21.4R3-S6, 
  • from 22.1 before 22.1R3-S5, 
  • from 22.2 before 22.2R3-S3, 
  • from 22.3 before 22.3R3-S2, 
  • from 22.4 before 22.4R3, 
  • from 23.2 before 23.2R2, 
  • from 23.4 before 23.4R2.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/U:Green
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-47493"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-11T16:15:09Z",
    "severity": "HIGH"
  },
  "details": "A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the SRX5K, SRX4600 and MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\n\nIn case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes\u00a0local FPC  to eventually run out of memory and crash.\u00a0\u00a0\n\nBelow CLI command can be used to check the memory usage over a period of time:\n\n\u2003\u2003user@host\u003e show chassis fpc\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Temp  CPU Utilization (%) \u00a0 CPU Utilization (%)  Memory \u00a0 \nUtilization (%)\n\u00a0 Slot State \u00a0 \u00a0  (C)\u00a0 Total\u00a0 Interrupt \u00a0 \u00a0  1min \u00a0 5min \u00a0\n15min DRAM (MB) Heap \u00a0 \u00a0 Buffer\n\n\u00a0 0 \nOnline\u00a0 \u00a0 \u00a0 \u00a043 \u00a0 \u00a0 41 \u00a0 \u00a0 \u00a0 \u00a0 \n2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 2048 \u00a0 \u00a0 \u00a0 49 \u00a0 \u00a0 \u00a0 \u00a0 14\n\n\u00a0 1 \nOnline\u00a0 \u00a0 \u00a0 \u00a043 \u00a0 \u00a0 41 \u00a0 \u00a0 \u00a0 \u00a0 \n2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\n2048 \u00a0 \u00a0 \u00a0 49 \u00a0 \u00a0 \u00a0 \u00a0 14\n\n\u00a0 2 \nOnline\u00a0 \u00a0 \u00a0 \u00a043 \u00a0 \u00a0 41 \u00a0 \u00a0 \u00a0 \u00a0 \n2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\n2048 \u00a0 \u00a0 \u00a0 49 \u00a0 \u00a0 \u00a0 \u00a0 14\n\n\n\n\n\n\n\n\n\nThis issue affects Junos OS on SRX5K, SRX4600 and MX Series:\u00a0\n\n\n\n\n  *  All versions before 21.2R3-S7,\u00a0\n  *  from 21.4 before 21.4R3-S6,\u00a0\n  *  from 22.1 before 22.1R3-S5,\u00a0\n  *  from 22.2 before 22.2R3-S3,\u00a0\n  *  from 22.3 before 22.3R3-S2,\u00a0\n  *  from 22.4 before 22.4R3,\u00a0\n  *  from 23.2 before 23.2R2,\u00a0\n  *  from 23.4 before 23.4R2.",
  "id": "GHSA-fpxg-3hxf-5mvr",
  "modified": "2024-11-08T18:30:43Z",
  "published": "2024-10-11T18:32:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47493"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net"
    },
    {
      "type": "WEB",
      "url": "https://www.juniper.net/documentation/us/en/software/junos/interfaces-link-multilink/topics/topic-map/link-multilink-services-understanding.html#id-multilink-interfaces-on-channelized-mics-overview"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:X/U:Green",
      "type": "CVSS_V4"
    }
  ]
}


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