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[email protected]CVE-2021-0227

HistoryApr 22, 2021 - 8:15 p.m.

CVE-2021-0227

2021-04-2220:15:08

CWE-119

[email protected]

web.nvd.nist.gov

cve-2021-0227

vulnerability

juniper networks

junos os

srx series

denial of service

memory buffer

http packets

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

61.1%

JSON

An improper restriction of operations within the bounds of a memory buffer vulnerability in Juniper Networks Junos OS J-Web on SRX Series devices allows an attacker to cause Denial of Service (DoS) by sending certain crafted HTTP packets. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. When this issue occurs, web-management, NTP daemon (ntpd) and Layer 2 Control Protocol process (L2CPD) daemons might crash. This issue affects Juniper Networks Junos OS on SRX Series: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S2, 20.1R2;

Affected configurations

NVD

Node

juniperjunosMatch17.3-

juniperjunosMatch17.3r1

juniperjunosMatch17.3r1-s1

juniperjunosMatch17.3r1-s4

juniperjunosMatch17.3r2

juniperjunosMatch17.3r2-s1

juniperjunosMatch17.3r2-s2

juniperjunosMatch17.3r2-s3

juniperjunosMatch17.3r2-s4

juniperjunosMatch17.3r2-s5

juniperjunosMatch17.3r3

juniperjunosMatch17.3r3-

juniperjunosMatch17.3r3-s1

juniperjunosMatch17.3r3-s10

juniperjunosMatch17.3r3-s2

juniperjunosMatch17.3r3-s3

juniperjunosMatch17.3r3-s4

juniperjunosMatch17.3r3-s5

juniperjunosMatch17.3r3-s6

juniperjunosMatch17.3r3-s7

juniperjunosMatch17.3r3-s8

juniperjunosMatch17.4-

juniperjunosMatch17.4r1

juniperjunosMatch17.4r1-s1

juniperjunosMatch17.4r1-s2

juniperjunosMatch17.4r1-s3

juniperjunosMatch17.4r1-s4

juniperjunosMatch17.4r1-s5

juniperjunosMatch17.4r1-s6

juniperjunosMatch17.4r1-s7

juniperjunosMatch17.4r2

juniperjunosMatch17.4r2-s1

juniperjunosMatch17.4r2-s10

juniperjunosMatch17.4r2-s2

juniperjunosMatch17.4r2-s3

juniperjunosMatch17.4r2-s4

juniperjunosMatch17.4r2-s5

juniperjunosMatch17.4r2-s6

juniperjunosMatch17.4r2-s7

juniperjunosMatch17.4r2-s8

juniperjunosMatch17.4r2-s9

juniperjunosMatch17.4r3

juniperjunosMatch17.4r3-s1

juniperjunosMatch18.2-

juniperjunosMatch18.2r1

juniperjunosMatch18.2r1-

juniperjunosMatch18.2r1-s2

juniperjunosMatch18.2r1-s3

juniperjunosMatch18.2r1-s4

juniperjunosMatch18.2r1-s5

juniperjunosMatch18.2r2

juniperjunosMatch18.2r2-s1

juniperjunosMatch18.2r2-s2

juniperjunosMatch18.2r2-s3

juniperjunosMatch18.2r2-s4

juniperjunosMatch18.2r2-s5

juniperjunosMatch18.2r2-s6

juniperjunosMatch18.2r2-s7

juniperjunosMatch18.2r3

juniperjunosMatch18.2r3-s1

juniperjunosMatch18.2r3-s2

juniperjunosMatch18.2r3-s3

juniperjunosMatch18.2r3-s4

juniperjunosMatch18.3-

juniperjunosMatch18.3r1

juniperjunosMatch18.3r1-s1

juniperjunosMatch18.3r1-s2

juniperjunosMatch18.3r1-s3

juniperjunosMatch18.3r1-s4

juniperjunosMatch18.3r1-s5

juniperjunosMatch18.3r1-s6

juniperjunosMatch18.3r2

juniperjunosMatch18.3r2-s1

juniperjunosMatch18.3r2-s2

juniperjunosMatch18.3r2-s3

juniperjunosMatch18.3r3

juniperjunosMatch18.3r3-s1

juniperjunosMatch18.3r3-s2

juniperjunosMatch18.4-

juniperjunosMatch18.4r1

juniperjunosMatch18.4r1-s1

juniperjunosMatch18.4r1-s2

juniperjunosMatch18.4r1-s3

juniperjunosMatch18.4r1-s4

juniperjunosMatch18.4r1-s5

juniperjunosMatch18.4r1-s6

juniperjunosMatch18.4r1-s7

juniperjunosMatch18.4r2

juniperjunosMatch18.4r2-s1

juniperjunosMatch18.4r2-s2

juniperjunosMatch18.4r2-s3

juniperjunosMatch18.4r2-s4

juniperjunosMatch18.4r3

juniperjunosMatch18.4r3-s1

juniperjunosMatch18.4r3-s2

juniperjunosMatch18.4r3-s3

juniperjunosMatch19.1-

juniperjunosMatch19.1r1

juniperjunosMatch19.1r1-s1

juniperjunosMatch19.1r1-s2

juniperjunosMatch19.1r1-s3

juniperjunosMatch19.1r1-s4

juniperjunosMatch19.1r1-s5

juniperjunosMatch19.1r2

juniperjunosMatch19.1r2-s1

juniperjunosMatch19.1r3

juniperjunosMatch19.1r3-s1

juniperjunosMatch19.2-

juniperjunosMatch19.2r1

juniperjunosMatch19.2r1-s1

juniperjunosMatch19.2r1-s2

juniperjunosMatch19.2r1-s3

juniperjunosMatch19.2r1-s4

juniperjunosMatch19.3-

juniperjunosMatch19.3r1

juniperjunosMatch19.3r1-s1

juniperjunosMatch19.3r2

juniperjunosMatch19.3r2-s1

juniperjunosMatch19.3r2-s2

juniperjunosMatch19.3r2-s3

juniperjunosMatch19.3r2-s4

juniperjunosMatch19.3r2-s5

juniperjunosMatch19.4r1

juniperjunosMatch19.4r1-s1

juniperjunosMatch19.4r1-s2

juniperjunosMatch19.4r2

juniperjunosMatch20.1r1

juniperjunosMatch20.1r1-s1

AND

junipersrx100Match-

junipersrx110Match-

junipersrx1400Match-

junipersrx1500Match-

junipersrx210Match-

junipersrx220Match-

junipersrx240Match-

junipersrx300Match-

junipersrx320Match-

junipersrx340Match-

junipersrx3400Match-

junipersrx345Match-

junipersrx3600Match-

junipersrx4100Match-

junipersrx4200Match-

junipersrx4600Match-

junipersrx5400Match-

junipersrx550Match-

junipersrx5600Match-

junipersrx5800Match-

junipersrx650Match-

CPENameOperatorVersion
juniper:junosjuniper junoseq17.3
juniper:junosjuniper junoseq17.4
juniper:junosjuniper junoseq18.2
juniper:junosjuniper junoseq18.3
juniper:junosjuniper junoseq18.4
juniper:junosjuniper junoseq19.1
juniper:junosjuniper junoseq19.2
juniper:junosjuniper junoseq19.3
juniper:junosjuniper junoseq19.4
juniper:junosjuniper junoseq20.1

CPE	Name	Operator	Version
juniper:junos	juniper junos	eq	17.3
juniper:junos	juniper junos	eq	17.4
juniper:junos	juniper junos	eq	18.2
juniper:junos	juniper junos	eq	18.3
juniper:junos	juniper junos	eq	18.4
juniper:junos	juniper junos	eq	19.1
juniper:junos	juniper junos	eq	19.2
juniper:junos	juniper junos	eq	19.3
juniper:junos	juniper junos	eq	19.4
juniper:junos	juniper junos	eq	20.1

CNA Affected

[
  {
    "platforms": [
      "SRX Series"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "17.3R3-S9",
        "status": "affected",
        "version": "17.3",
        "versionType": "custom"
      },
      {
        "lessThan": "17.4R2-S11, 17.4R3-S2",
        "status": "affected",
        "version": "17.4",
        "versionType": "custom"
      },
      {
        "lessThan": "18.2R3-S5",
        "status": "affected",
        "version": "18.2",
        "versionType": "custom"
      },
      {
        "lessThan": "18.3R2-S4, 18.3R3-S3",
        "status": "affected",
        "version": "18.3",
        "versionType": "custom"
      },
      {
        "lessThan": "18.4R2-S5, 18.4R3-S4",
        "status": "affected",
        "version": "18.4",
        "versionType": "custom"
      },
      {
        "lessThan": "19.1R3-S2",
        "status": "affected",
        "version": "19.1",
        "versionType": "custom"
      },
      {
        "lessThan": "19.2R1-S5, 19.2R3",
        "status": "affected",
        "version": "19.2",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R3",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R2-S1, 19.4R3",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R1-S2, 20.1R2",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      }
    ]
  }
]

References

kb.juniper.net/JSA11122

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

61.1%

JSON

Related for CVE-2021-0227

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