Riskcovery

CVE-2024-39529

Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scenario specific DNS traffic leads to a PFE crash

State
Published
Severity
8.7 High
Published
Jul 11, 2024
Updated
Aug 2, 2024
Reserved
Jun 25, 2024

Read the record on cve.org

Description

A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).

If DNS Domain Generation Algorithm (DGA) detection or tunnel detection, and DNS-filtering traceoptions are configured, and specific valid transit DNS traffic is received this causes a PFE crash and restart, leading to a Denial of Service.

This issue affects Junos OS: * All versions before 21.4R3-S6, * 22.2 versions before 22.2R3-S3, * 22.3 versions before 22.3R3-S3, * 22.4 versions before 22.4R3, * 23.2 versions before 23.2R2.

Scores

CVSSScoreVectorSource
4.08.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Ljuniper
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

  • CWE-134 Use of Externally-Controlled Format String

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 21.4R3-S6Affected
  • 22.2 to before 22.2R3-S3Affected
  • 22.3 to before 22.3R3-S3Affected
  • 22.4 to before 22.4R3Affected
  • 23.2 to before 23.2R2Affected

References

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