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cve[email protected]CVE-2022-22220
HistoryOct 18, 2022 - 3:15 a.m.

CVE-2022-22220

2022-10-1803:15:09
CWE-367
web.nvd.nist.gov
31
4
cve-2022-22220
toctou
race condition
rpd
juniper networks
junos os
denial of service
vulnerability
nvd

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.3%

A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS, Junos OS Evolved allows a network-based unauthenticated attacker to cause a Denial of Service (DoS). When a BGP flow route with redirect IP extended community is received, and the reachability to the next-hop of the corresponding redirect IP is flapping, the rpd process might crash. Whether the crash occurs depends on the timing of the internally processing of these two events and is outside the attackers control. Please note that this issue also affects Route-Reflectors unless ‘routing-options flow firewall-install-disable’ is configured. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S10, 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.4 versions prior to 19.4R3-S8; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1-EVO versions prior to 21.1R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1.

Affected configurations

NVD
Node
juniperjunosRange<18.4
OR
juniperjunosMatch18.4-
OR
juniperjunosMatch18.4r1
OR
juniperjunosMatch18.4r1-s1
OR
juniperjunosMatch18.4r1-s2
OR
juniperjunosMatch18.4r1-s3
OR
juniperjunosMatch18.4r1-s4
OR
juniperjunosMatch18.4r1-s5
OR
juniperjunosMatch18.4r1-s6
OR
juniperjunosMatch18.4r1-s7
OR
juniperjunosMatch18.4r2
OR
juniperjunosMatch18.4r2-s1
OR
juniperjunosMatch18.4r2-s2
OR
juniperjunosMatch18.4r2-s3
OR
juniperjunosMatch18.4r2-s4
OR
juniperjunosMatch18.4r2-s5
OR
juniperjunosMatch18.4r2-s6
OR
juniperjunosMatch18.4r2-s7
OR
juniperjunosMatch18.4r2-s8
OR
juniperjunosMatch18.4r2-s9
OR
juniperjunosMatch18.4r3-s10
OR
juniperjunosMatch19.1-
OR
juniperjunosMatch19.1r1
OR
juniperjunosMatch19.1r1-s1
OR
juniperjunosMatch19.1r1-s2
OR
juniperjunosMatch19.1r1-s3
OR
juniperjunosMatch19.1r1-s4
OR
juniperjunosMatch19.1r1-s5
OR
juniperjunosMatch19.1r1-s6
OR
juniperjunosMatch19.1r2
OR
juniperjunosMatch19.1r2-s1
OR
juniperjunosMatch19.1r2-s2
OR
juniperjunosMatch19.1r2-s3
OR
juniperjunosMatch19.1r3
OR
juniperjunosMatch19.1r3-s1
OR
juniperjunosMatch19.1r3-s2
OR
juniperjunosMatch19.1r3-s3
OR
juniperjunosMatch19.1r3-s4
OR
juniperjunosMatch19.1r3-s5
OR
juniperjunosMatch19.1r3-s6
OR
juniperjunosMatch19.4-
OR
juniperjunosMatch19.4r1
OR
juniperjunosMatch19.4r1-s1
OR
juniperjunosMatch19.4r1-s2
OR
juniperjunosMatch19.4r1-s3
OR
juniperjunosMatch19.4r1-s4
OR
juniperjunosMatch19.4r2
OR
juniperjunosMatch19.4r2-s1
OR
juniperjunosMatch19.4r2-s2
OR
juniperjunosMatch19.4r2-s3
OR
juniperjunosMatch19.4r2-s4
OR
juniperjunosMatch19.4r2-s5
OR
juniperjunosMatch19.4r3-s6
OR
juniperjunosMatch19.4r3-s7
OR
juniperjunosMatch20.2-
OR
juniperjunosMatch20.2r1
OR
juniperjunosMatch20.2r1-s1
OR
juniperjunosMatch20.2r1-s2
OR
juniperjunosMatch20.2r1-s3
OR
juniperjunosMatch20.2r2
OR
juniperjunosMatch20.2r2-s1
OR
juniperjunosMatch20.2r2-s2
OR
juniperjunosMatch20.2r2-s3
OR
juniperjunosMatch20.2r3
OR
juniperjunosMatch20.2r3-s1
OR
juniperjunosMatch20.2r3-s2
OR
juniperjunosMatch20.3-
OR
juniperjunosMatch20.3r1
OR
juniperjunosMatch20.3r1-s1
OR
juniperjunosMatch20.3r1-s2
OR
juniperjunosMatch20.3r2
OR
juniperjunosMatch20.3r2-s1
OR
juniperjunosMatch20.3r3
OR
juniperjunosMatch20.3r3-s1
OR
juniperjunosMatch20.3r3-s2
OR
juniperjunosMatch20.4-
OR
juniperjunosMatch20.4r1
OR
juniperjunosMatch20.4r1-s1
OR
juniperjunosMatch20.4r2
OR
juniperjunosMatch20.4r2-s1
OR
juniperjunosMatch20.4r2-s2
OR
juniperjunosMatch21.1-
OR
juniperjunosMatch21.1r1
OR
juniperjunosMatch21.1r1-s1
Node
juniperjunos_os_evolvedRange<20.4
OR
juniperjunos_os_evolvedMatch20.4-
OR
juniperjunos_os_evolvedMatch20.4r1
OR
juniperjunos_os_evolvedMatch20.4r1-s1
OR
juniperjunos_os_evolvedMatch20.4r1-s2
OR
juniperjunos_os_evolvedMatch21.1-
OR
juniperjunos_os_evolvedMatch21.1r1
OR
juniperjunos_os_evolvedMatch21.1r1-s1

CNA Affected

[
  {
    "vendor": "Juniper Networks",
    "product": "Junos OS",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "18.4R1",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "18.4",
        "status": "affected",
        "lessThan": "18.4R2-S10, 18.4R3-S10",
        "versionType": "custom"
      },
      {
        "version": "19.1",
        "status": "affected",
        "lessThan": "19.1R3-S7",
        "versionType": "custom"
      },
      {
        "version": "19.2",
        "status": "affected",
        "lessThan": "19.2R1-S8, 19.2R3-S4",
        "versionType": "custom"
      },
      {
        "version": "19.4",
        "status": "affected",
        "lessThan": "19.4R3-S8",
        "versionType": "custom"
      },
      {
        "version": "20.2",
        "status": "affected",
        "lessThan": "20.2R3-S3",
        "versionType": "custom"
      },
      {
        "version": "20.3",
        "status": "affected",
        "lessThan": "20.3R3-S2",
        "versionType": "custom"
      },
      {
        "version": "20.4",
        "status": "affected",
        "lessThan": "20.4R3",
        "versionType": "custom"
      },
      {
        "version": "21.1",
        "status": "affected",
        "lessThan": "21.1R2",
        "versionType": "custom"
      }
    ]
  },
  {
    "vendor": "Juniper Networks",
    "product": "Junos OS Evolved",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "20.4R2-EVO",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "21.1-EVO",
        "status": "affected",
        "lessThan": "21.1R2-EVO",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.3%

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