Junos OS: SRX Series: Double free vulnerability can lead to DoS or remote code execution due to the processing of a specific HTTP message when ICAP redirect service is enabled (Juniper Networks Junos OS)

CVE-2020-1647

CRITICAL 9.8

At a glance

Source: NVD
EPSS: EPSS 2.65 % · percentile 86 (2026-10-31)
State: PUBLISHED
Published: 2020-07-17 18:40 UTC
Updated: 2024-09-17 01:00 UTC
Assigner: juniper
NVD status: Modified

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Description

On Juniper Networks SRX Series with ICAP (Internet Content Adaptation Protocol) redirect service enabled, a double free vulnerability can lead to a Denial of Service (DoS) or Remote Code Execution (RCE) due to processing of a specific HTTP message. Continued processing of this specific HTTP message may result in an extended Denial of Service (DoS). The offending HTTP message that causes this issue may originate both from the HTTP server or the client. This issue affects Juniper Networks Junos OS on SRX Series: 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R1-S2, 19.2R2; 19.3 versions prior to 19.3R2. This issue does not affect Juniper Networks Junos OS prior to 18.1R1.

Weaknesses (CWE)

CWE-415 — Double Free

References

https://kb.juniper.net/JSA11034

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	juniper
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · sirt@juniper.net (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2020-12512
GCVE · GCVE-0-2020-1647

CERT-FR advisories

CERTFR-2020-AVI-420 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*
+25 more

Affected products

Product	Versions
Juniper Networks · Junos OS	unaffected unspecified < 18.1R1 ; affected 18.1 < 18.1R3-S9 ; affected 18.2 < 18.2R3-S3 ; affected 18.3 < 18.3R2-S4, 18.3R3-S1 ; affected 18.4 < 18.4R2-S5, 18.4R3 ; affected 19.1 < 19.1R2

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

💣 Junos OS: SRX Series: Double free vulnerability can lead to DoS or remote code execution due to the processing of a specific HTTP message when ICAP redirect service is enabled (Juniper Networks Junos OS)