high
7.5
CWE
476
Advisory Published
Updated

CVE-2018-0049: Junos OS: Receipt of a specifically crafted malicious MPLS packet leads to a Junos kernel crash.

First published: Wed Oct 10 2018(Updated: )

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to cause the Junos OS kernel to crash. Continued receipt of this specifically crafted malicious MPLS packet will cause a sustained Denial of Service condition. This issue require it to be received on an interface configured to receive this type of traffic. Affected releases are Juniper Networks Junos OS: 12.1X46 versions above and including 12.1X46-D76 prior to 12.1X46-D81 on SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 12.3R12-S10; 12.3X48 versions above and including 12.3X48-D66 prior to 12.3X48-D75 on SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 14.1X53-D47 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100; 14.1X53 versions above and including 14.1X53-D115 prior to 14.1X53-D130 on QFabric System; 15.1 versions above and including 15.1F6-S10; 15.1R4-S9; 15.1R6-S6; 15.1 versions above and including 15.1R7 prior to 15.1R7-S2; 15.1X49 versions above and including 15.1X49-D131 prior to 15.1X49-D150 on SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 15.1X53 versions above 15.1X53-D233 prior to 15.1X53-D235 on QFX5200/QFX5110; 15.1X53 versions up to and including 15.1X53-D471 prior to 15.1X53-D590 on NFX150, NFX250; 15.1X53-D67 on QFX10000 Series; 15.1X53-D59 on EX2300/EX3400; 16.1 versions above and including 16.1R3-S8; 16.1 versions above and including 16.1R4-S9 prior to 16.1R4-S12; 16.1 versions above and including 16.1R5-S4; 16.1 versions above and including 16.1R6-S3 prior to 16.1R6-S6; 16.1 versions above and including 16.1R7 prior to 16.1R7-S2; 16.2 versions above and including 16.2R1-S6; 16.2 versions above and including 16.2R2-S5 prior to 16.2R2-S7; 17.1R1-S7; 17.1 versions above and including 17.1R2-S7 prior to 17.1R2-S9; 17.2R1-S6; 17.2 versions above and including 17.2R2-S4 prior to 17.2R2-S6; 17.2X75 versions above and including 17.2X75-D100 prior to X17.2X75-D101, 17.2X75-D110; 17.3 versions above and including 17.3R1-S4 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.3 versions above and including 17.3R2-S2 prior to 17.3R2-S4 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.3R3 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.4 versions above and including 17.4R1-S3 prior to 17.4R1-S5 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 17.4R2 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 18.1 versions above and including 18.1R2 prior to 18.1R2-S3, 18.1R3 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 18.2 versions above and including 18.2R1 prior to 18.2R1-S2, 18.2R1-S3, 18.2R2 on All non-SRX Series and SRX100, SRX110, SRX210, SRX220, SRX240m, SRX550m SRX650, SRX300, SRX320, SRX340, SRX345, SRX1500, SRX4100, SRX4200, SRX4600 and vSRX; 18.2X75 versions above and including 18.2X75-D5 prior to 18.2X75-D20.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Junos OS Evolved=12.1x46-d76
Junos OS Evolved=12.1x46-d77
Junos OS Evolved=12.3x48-d66
Junos OS Evolved=12.3x48-d70
Juniper SRX100
Juniper SRX110
Juniper SRX1400
Juniper SRX1500
Juniper SRX210
Juniper SRX220
Juniper SRX240
Juniper SRX240H2
Juniper SRX300
Juniper SRX320
Juniper SRX340
Juniper SRX3400
Juniper SRX345
Juniper SRX3600
Juniper SRX380
Juniper SRX4000
Juniper SRX4100
Juniper SRX4200
Juniper SRX4600
Junos OS SRX 5000 Series
Juniper SRX5400
Juniper SRX550
Juniper SRX550
Juniper SRX550
Juniper SRX5600
Juniper SRX5800
Juniper SRX650
Junos OS Evolved=12.3-r12-s10
Junos OS Evolved=15.1-f6-s10
Junos OS Evolved=15.1-f6-s12
Junos OS Evolved=15.1-f7
Junos OS Evolved=15.1-r
Junos OS Evolved=15.1-r1
Junos OS Evolved=15.1-r2
Junos OS Evolved=15.1-r3
Junos OS Evolved=15.1-r4
Junos OS Evolved=15.1-r4-s7
Junos OS Evolved=15.1-r4-s8
Junos OS Evolved=15.1-r4-s9
Junos OS Evolved=15.1-r5
Junos OS Evolved=15.1-r5-s1
Junos OS Evolved=15.1-r5-s3
Junos OS Evolved=15.1-r5-s5
Junos OS Evolved=15.1-r5-s6
Junos OS Evolved=15.1-r6
Junos OS Evolved=15.1-r6-s1
Junos OS Evolved=15.1-r6-s2
Junos OS Evolved=15.1-r6-s3
Junos OS Evolved=15.1-r6-s4
Junos OS Evolved=15.1-r6-s6
Junos OS Evolved=15.1-r7
Junos OS Evolved=15.1-r7-s1
Junos OS Evolved=16.1-r3-s8
Junos OS Evolved=16.1-r4
Junos OS Evolved=16.1-r4-s2
Junos OS Evolved=16.1-r4-s3
Junos OS Evolved=16.1-r4-s4
Junos OS Evolved=16.1-r4-s6
Junos OS Evolved=16.1-r4-s8
Junos OS Evolved=16.1-r4-s9
Junos OS Evolved=16.1-r5-s4
Junos OS Evolved=16.1-r6
Junos OS Evolved=16.1-r6-s1
Junos OS Evolved=16.1-r6-s3
Junos OS Evolved=16.1-r6-s4
Junos OS Evolved=16.1-r7
Junos OS Evolved=16.2-r1-s6
Junos OS Evolved=16.2-r2
Junos OS Evolved=16.2-r2-s1
Junos OS Evolved=16.2-r2-s10
Junos OS Evolved=16.2-r2-s2
Junos OS Evolved=16.2-r2-s5
Junos OS Evolved=16.2-r2-s6
Junos OS Evolved=17.1-r1-s7
Junos OS Evolved=17.1-r2-s7
Junos OS Evolved=17.1-r2-s8
Junos OS Evolved=17.2-r1-s6
Junos OS Evolved=17.2-r2-s4
Junos OS Evolved=17.2x75-d100
Junos OS Evolved=18.2x75-d12
Junos OS Evolved=18.2x75-d5
Junos OS Evolved=14.1x53-d47
Juniper EX2200-C
Juniper EX2200
Juniper EX3200
Juniper EX3300-VX
Juniper EX3300-VX
Juniper EX Series
Juniper EX4300-24T
Juniper EX Series
Juniper EX4550
Juniper EX4600
Juniper EX6200
Juniper EX Series
Juniper EX8200
Juniper Networks QFX-Series
Juniper QFX3600-I
Juniper QFX5100
Junos OS Evolved=15.1x49-d131
Junos OS Evolved=15.1x49-d140
Junos OS Evolved=17.3-r1-s4
Junos OS Evolved=17.3-r2
Junos OS Evolved=17.3-r2-s1
Junos OS Evolved=17.3-r2-s2
Junos OS Evolved=17.3-r2-s3
Junos OS Evolved=17.3-r3
Junos OS Evolved=17.4-r1-s3
Junos OS Evolved=17.4-r1-s4
Junos OS Evolved=17.4-r2
Junos OS Evolved=18.1-r2
Junos OS Evolved=18.1-r2-s1
Junos OS Evolved=18.1-r2-s2
Junos OS Evolved=18.2-r1
Juniper SRX240M
Junos OS Evolved=15.1x53-d233
Junos OS Evolved=15.1x53-d234
Juniper QFX5110
Juniper QFX5200-32C
Junos OS Evolved=15.1x53-d471
Junos OS Evolved=15.1x53-d490
Junos OS Evolved=15.1x53-d495
Juniper NFX
Juniper NFX
Junos OS Evolved=15.1x53-d67
Juniper Networks QFX-Series
Juniper QFX10002-60C
Juniper QFX10002
Juniper QFX10002
Juniper QFX10002
Juniper Networks QFX-Series
Juniper Networks QFX-Series
Junos OS Evolved=15.1x53-d59
Juniper EX2300-24T
Juniper EX3400

Remedy

The following software releases have been updated to resolve this specific issue: 12.1X46-D81, 12.3R12-S11, 12.3X48-D75, 14.1X53-D130, 14.1X53-D48, 15.1R7-S2, 15.1X49-D150, 5.1X53-D235, 15.1X53-D495, 15.1X53-D68, 15.1X53-D590, 16.1R4-S12, 16.1R6-S6, 16.1R7-S2, 16.1X65-D48, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.2X75-D101, 17.2X75-D110, 17.3R2-S4, 17.3R3-S1, 17.3R4, 17.4R1-S5, 17.4R2-S1, 17.4R3, 18.1R2-S3, 18.1R3, 18.2R1-S2, 18.2R1-S3, 18.2R2, 18.2X75-D20, 18.3R1, and all subsequent releases. Additionally, the following software releases have been re-released to the Juniper download pages to resolve this specific issue: 12.1X46-D76.1, 12.3X48-D70.4, 14.1X53-D47.6, 15.1F6-S10.11, 15.1R6-S6.2, 15.1R7.9, 15.1X49-D140.3, 15.1X53-D233.2, 15.1X53-D59.4, 15.1X53-D67.6, 16.1R6-S3.2, 16.1R7-S1.2, 16.1R7.8, 17.2X75-D100.6, 17.3R2-S2.2, 17.3R3.10, 17.4R1-S3.4, 18.1R2.6. Note: The final ".xy" numeric entry, for example the .4 in 12.3X48-D70.4, on a release in this notice is the respin release number. Customer's should check the respin release number on the version of Junos OS to confirm vulnerability.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-0049?

    The severity of CVE-2018-0049 is classified as high due to the potential for Denial of Service attacks.

  • How do I fix CVE-2018-0049?

    To fix CVE-2018-0049, upgrade Juniper Networks Junos OS to a version that includes the patch addressing this vulnerability.

  • What impact does CVE-2018-0049 have on my network?

    CVE-2018-0049 can cause the Junos OS kernel to crash, leading to a persistent Denial of Service condition on affected devices.

  • Which versions of Junos OS are affected by CVE-2018-0049?

    CVE-2018-0049 affects Junos OS versions 12.1x46-d76, 12.1x46-d77, 12.3x48-d66, 12.3x48-d70, and others listed in the vulnerability details.

  • How can I determine if my device is vulnerable to CVE-2018-0049?

    You can determine vulnerability to CVE-2018-0049 by checking the version of Junos OS running on your device against the list of affected versions.

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