Published: 15/01/2019 Updated: 24/08/2020

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

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

An SRX Series Service Gateway configured for Unified Threat Management (UTM) may experience a system crash with the error message "mbuf exceed" -- an indication of memory buffer exhaustion -- due to the receipt of crafted HTTP traffic. Each crafted HTTP packet inspected by UTM consumes mbufs which can be identified through the following log messages: all_logs.0:Jun 8 03:25:03 srx1 node0.fpc4 : SPU3 jmpi mbuf stall 50%. all_logs.0:Jun 8 03:25:13 srx1 node0.fpc4 : SPU3 jmpi mbuf stall 51%. all_logs.0:Jun 8 03:25:24 srx1 node0.fpc4 : SPU3 jmpi mbuf stall 52%. ... Eventually the system runs out of mbufs and the system crashes (fails over) with the error "mbuf exceed". This issue only occurs when HTTP AV inspection is configured. Devices configured for Web Filtering alone are unaffected by this issue. Affected releases are Junos OS on SRX Series: 12.1X46 versions before 12.1X46-D81; 12.3X48 versions before 12.3X48-D77; 15.1X49 versions before 15.1X49-D101, 15.1X49-D110.

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juniper junos 12.1x46
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juniper junos 15.1x49

Before you slink off to the pub, be sure to patch these 19 serious vulns in Juniper Networks kit

The Register • Richard Chirgwin • 10 Jan 2019

Happy New Year from the Gin Palace

Juniper Networks has had its first big bug day in months, with 19 patches announced covering everything from third-party package catchups to critical errors in password handling. For the sake of organisation, let's pick up patches in the Junos OS first (there being so many patches, The Register will focus on those rated "High" and "Critical"). First on the critical list is CVE-2019-0006, which affects Junos OS 14.1X53, 15.1, and 15.1X53 running on EX, QFX and MX units. A crafted HTTP packet can ...

CVE-2019-0010

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