github - ghsa-4633-w3xc-3953

GHSA-4633-W3XC-3953

Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-05-24 17:48

Details

On PTX Series and QFX10k Series devices with the "inline-jflow" feature enabled, a use after free weakness in the Packet Forwarding Engine (PFE) microkernel architecture of Juniper Networks Junos OS may allow an attacker to cause a Denial of Service (DoS) condition whereby one or more Flexible PIC Concentrators (FPCs) may restart. As this is a race condition situation this issue become more likely to be hit when network instability occurs, such as but not limited to BGP/IGP reconvergences, and/or further likely to occur when more active "traffic flows" are occurring through the device. When this issue occurs, it will cause one or more FPCs to restart unexpectedly. During FPC restarts core files will be generated. While the core file is generated traffic will be disrupted. Sustained receipt of large traffic flows and reconvergence-like situations may sustain the Denial of Service (DoS) situation. This issue affects: Juniper Networks Junos OS: 18.1 version 18.1R2 and later versions prior to 18.1R3-S10 on PTX Series, QFX10K Series.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-0270"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-22T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "On PTX Series and QFX10k Series devices with the \"inline-jflow\" feature enabled, a use after free weakness in the Packet Forwarding Engine (PFE) microkernel architecture of Juniper Networks Junos OS may allow an attacker to cause a Denial of Service (DoS) condition whereby one or more Flexible PIC Concentrators (FPCs) may restart. As this is a race condition situation this issue become more likely to be hit when network instability occurs, such as but not limited to BGP/IGP reconvergences, and/or further likely to occur when more active \"traffic flows\" are occurring through the device. When this issue occurs, it will cause one or more FPCs to restart unexpectedly. During FPC restarts core files will be generated. While the core file is generated traffic will be disrupted. Sustained receipt of large traffic flows and reconvergence-like situations may sustain the Denial of Service (DoS) situation. This issue affects: Juniper Networks Junos OS: 18.1 version 18.1R2 and later versions prior to 18.1R3-S10 on PTX Series, QFX10K Series.",
  "id": "GHSA-4633-w3xc-3953",
  "modified": "2022-05-24T17:48:16Z",
  "published": "2022-05-24T17:48:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0270"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA11161"
    },
    {
      "type": "WEB",
      "url": "https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/inline-flow-monitoring-ptx.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-0270 (GCVE-0-2021-0270)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-16 19:04

Summary

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)
CWE-416 - Use After Free

Assigner

juniper

References

URL

Tags

	https://kb.juniper.net/JSA11161	x_refsource_MISC
	https://www.juniper.net/documentation/en_US/junos…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Affected: 18.1R2 , < 18.1* (custom)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:32:10.526Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://kb.juniper.net/JSA11161"
          },
          {
            "tags": [
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              "x_transferred"
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            "url": "https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/inline-flow-monitoring-ptx.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "platforms": [
            "PTX Series, QFX10K Series"
          ],
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          "versions": [
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                  "at": "18.1R3-S10",
                  "status": "affected"
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              "version": "18.1R2",
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          "lang": "en",
          "value": "The inline flow monitoring configuration can be broadly classified into the following categories:\n\nConfigurations at the [edit services flow-monitoring version-ipfix template] or [edit services flow-monitoring version9 template] hierarchy level\u2014At this level, you configure the template properties for inline flow monitoring.\nConfigurations at the [edit forwarding-options sampling instance] hierarchy level\u2014At this level, you configure a sampling instance and associate the template to the sampling instance. At this level, you also configure the flow-server IP address and port number as well as the autonomous system type.\nConfigurations at the [edit chassis fpc] hierarchy level\u2014At this level, you associate the sampling instance with the FPC on which the media interface is present.\nConfigurations at the [edit firewall] hierarchy level\u2014At this level you configure a firewall filter for the family of traffic to be sampled. You must attach this filter to the interface on which you want to sample the traffic.\n\nSee https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/inline-flow-monitoring-ptx.html for further details."
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        }
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        }
      ],
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-4633-W3XC-3953

CVE-2021-0270 (GCVE-0-2021-0270)

Tags

Sightings

Nomenclature