variot - var-202107-0516

var-202107-0516

Vulnerability from variot

A vulnerability in Juniper Networks Junos OS caused by Missing Release of Memory after Effective Lifetime leads to a memory leak each time the CLI command 'show system connections extensive' is executed. The amount of memory leaked on each execution depends on the number of TCP connections from and to the system. Repeated execution will cause more memory to leak and eventually daemons that need to allocate additionally memory and ultimately the kernel to crash, which will result in traffic loss. Continued execution of this command will cause a sustained Denial of Service (DoS) condition. An administrator can use the following CLI command to monitor for increase in memory consumption of the netstat process, if it exists: user@junos> show system processes extensive | match "username|netstat" PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 21181 root 100 0 5458M 4913M CPU3 2 0:59 97.27% netstat The following log message might be observed if this issue happens: kernel: %KERN-3: pid 21181 (netstat), uid 0, was killed: out of swap space This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R2-S8, 18.2R3-S7. 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2; This issue does not affect Juniper Networks Junos OS versions prior to 18.2R1. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements

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cve-2021-0293

Vulnerability from cvelistv5

Published

2021-07-15 20:01

Modified

2024-09-16 22:40

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

Junos OS: Out-of-memory condition and crashes can occur after executing a certain CLI command repeatedly

References

▼	URL	Tags
	https://kb.juniper.net/JSA11195	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	Juniper Networks	Junos OS

Show details on NVD website

JSON

To clipboard

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            "url": "https://kb.juniper.net/JSA11195"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "18.2R1",
              "status": "unaffected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "18.3R3-S4",
              "status": "affected",
              "version": "18.3",
              "versionType": "custom"
            },
            {
              "lessThan": "18.4R1-S8, 18.4R2-S6, 18.4R3-S7",
              "status": "affected",
              "version": "18.4",
              "versionType": "custom"
            },
            {
              "lessThan": "19.1R1-S6, 19.1R2-S2, 19.1R3-S4",
              "status": "affected",
              "version": "19.1",
              "versionType": "custom"
            },
            {
              "lessThan": "19.2R1-S6, 19.2R3-S2",
              "status": "affected",
              "version": "19.2",
              "versionType": "custom"
            },
            {
              "lessThan": "19.3R2-S6, 19.3R3-S1",
              "status": "affected",
              "version": "19.3",
              "versionType": "custom"
            },
            {
              "lessThan": "19.4R1-S4, 19.4R2-S3, 19.4R3-S1",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1R2",
              "status": "affected",
              "version": "20.1",
              "versionType": "custom"
            },
            {
              "lessThan": "20.2R2-S1, 20.2R3",
              "status": "affected",
              "version": "20.2",
              "versionType": "custom"
            },
            {
              "lessThan": "20.3R1-S1, 20.3R2",
              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
            },
            {
              "lessThan": "18.2R2-S8, 18.2R3-S7",
              "status": "affected",
              "version": "18.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-07-14T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in Juniper Networks Junos OS caused by Missing Release of Memory after Effective Lifetime leads to a memory leak each time the CLI command \u0027show system connections extensive\u0027 is executed. The amount of memory leaked on each execution depends on the number of TCP connections from and to the system. Repeated execution will cause more memory to leak and eventually daemons that need to allocate additionally memory and ultimately the kernel to crash, which will result in traffic loss. Continued execution of this command will cause a sustained Denial of Service (DoS) condition. An administrator can use the following CLI command to monitor for increase in memory consumption of the netstat process, if it exists: user@junos\u003e show system processes extensive | match \"username|netstat\" PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 21181 root 100 0 5458M 4913M CPU3 2 0:59 97.27% netstat The following log message might be observed if this issue happens: kernel: %KERN-3: pid 21181 (netstat), uid 0, was killed: out of swap space This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R2-S8, 18.2R3-S7. 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2; This issue does not affect Juniper Networks Junos OS versions prior to 18.2R1."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-401",
              "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-15T20:01:11",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA11195"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: 18.2R2-S8, 18.2R3-S7, 18.3R3-S4, 18.4R1-S8, 18.4R2-S6, 18.4R3-S7, 19.1R1-S6, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.3R3-S2, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1, 20.1R2, 20.2R2-S1, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA11195",
        "defect": [
          "1548355"
        ],
        "discovery": "USER"
      },
      "title": "Junos OS: Out-of-memory condition and crashes can occur after executing a certain CLI command repeatedly",
      "workarounds": [
        {
          "lang": "en",
          "value": "Please use \u0027show system connections\u0027 (without extensive) and restrict access to \u0027show system connections extensive\u0027.\n\nTo recover please use:\n\n  request system process terminate \u003cPID\u003e\n\nwith the PID for the netstat process from the output of \u0027show system processes extensive\u0027."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
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          "DATE_PUBLIC": "2021-07-14T16:00:00.000Z",
          "ID": "CVE-2021-0293",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS: Out-of-memory condition and crashes can occur after executing a certain CLI command repeatedly"
        },
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          "vendor": {
            "vendor_data": [
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                  "product_data": [
                    {
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                      "version": {
                        "version_data": [
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                            "version_name": "18.3",
                            "version_value": "18.3R3-S4"
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                          {
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                            "version_name": "18.4",
                            "version_value": "18.4R1-S8, 18.4R2-S6, 18.4R3-S7"
                          },
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                            "version_name": "19.1",
                            "version_value": "19.1R1-S6, 19.1R2-S2, 19.1R3-S4"
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                            "version_affected": "\u003c",
                            "version_name": "19.2",
                            "version_value": "19.2R1-S6, 19.2R3-S2"
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                            "version_value": "19.4R1-S4, 19.4R2-S3, 19.4R3-S1"
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                          {
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                            "version_value": "20.1R2"
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                          {
                            "version_affected": "\u003c",
                            "version_name": "20.2",
                            "version_value": "20.2R2-S1, 20.2R3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.3",
                            "version_value": "20.3R1-S1, 20.3R2"
                          },
                          {
                            "version_affected": "!\u003c",
                            "version_value": "18.2R1"
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        "description": {
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              "lang": "eng",
              "value": "A vulnerability in Juniper Networks Junos OS caused by Missing Release of Memory after Effective Lifetime leads to a memory leak each time the CLI command \u0027show system connections extensive\u0027 is executed. The amount of memory leaked on each execution depends on the number of TCP connections from and to the system. Repeated execution will cause more memory to leak and eventually daemons that need to allocate additionally memory and ultimately the kernel to crash, which will result in traffic loss. Continued execution of this command will cause a sustained Denial of Service (DoS) condition. An administrator can use the following CLI command to monitor for increase in memory consumption of the netstat process, if it exists: user@junos\u003e show system processes extensive | match \"username|netstat\" PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 21181 root 100 0 5458M 4913M CPU3 2 0:59 97.27% netstat The following log message might be observed if this issue happens: kernel: %KERN-3: pid 21181 (netstat), uid 0, was killed: out of swap space This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R2-S8, 18.2R3-S7. 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2; This issue does not affect Juniper Networks Junos OS versions prior to 18.2R1."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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        ],
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            "version": "3.1"
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        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "lang": "eng",
                  "value": "CWE-401 Missing Release of Memory after Effective Lifetime"
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            }
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            }
          ]
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        "solution": [
          {
            "lang": "en",
            "value": "The following software releases have been updated to resolve this specific issue: 18.2R2-S8, 18.2R3-S7, 18.3R3-S4, 18.4R1-S8, 18.4R2-S6, 18.4R3-S7, 19.1R1-S6, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.3R3-S2, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1, 20.1R2, 20.2R2-S1, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases."
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        "work_around": [
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            "lang": "en",
            "value": "Please use \u0027show system connections\u0027 (without extensive) and restrict access to \u0027show system connections extensive\u0027.\n\nTo recover please use:\n\n  request system process terminate \u003cPID\u003e\n\nwith the PID for the netstat process from the output of \u0027show system processes extensive\u0027."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2021-0293",
    "datePublished": "2021-07-15T20:01:11.963565Z",
    "dateReserved": "2020-10-27T00:00:00",
    "dateUpdated": "2024-09-16T22:40:45.783Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted