Riskcovery

CVE-2023-36838

Junos OS: SRX Series: A flowd core occurs when running a low privileged CLI command

State
Published
Severity
5.5 Medium
Published
Jul 14, 2023
Updated
Oct 22, 2024
Reserved
Jun 27, 2023

Read the record on cve.org

Description

An Out-of-bounds Read vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a local, authenticated attacker with low privileges, to cause a Denial of Service (DoS).

If a low privileged user executes a specific CLI command, flowd which is responsible for traffic forwarding in SRX crashes and generates a core dump. This will cause temporary traffic interruption until the flowd process is restarted automatically. Continued execution of this command will lead to a sustained DoS.

This issue affects Juniper Networks Junos OS on SRX Series: All versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S4; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R3; 22.3 versions prior to 22.3R2; 22.4 versions prior to 22.4R1-S1, 22.4R2.

Scores

CVSSScoreVectorSource
3.15.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 20.2R3-S7Affected
  • 20.3 to before 20.3*Affectedfrom 20.3R1Affected
  • 20.4 to before 20.4R3-S6Affected
  • 21.1 to before 21.1R3-S5Affected
  • 21.2 to before 21.2R3-S4Affected
  • 21.3 to before 21.3R3-S4Affected
  • 21.4 to before 21.4R3-S3Affected
  • 22.1 to before 22.1R3-S1Affected
  • 22.2 to before 22.2R3Affected
  • 22.3 to before 22.3R2Affected
  • 22.4 to before 22.4R1-S1, 22.4R2Affected

References

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