#VU49549 Memory leak in Juniper Junos OS - CVE-2021-0215
Vulnerability identifier: #VU49549
Vulnerability risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-401
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Juniper Junos OS
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in packet forwarding engine due to 802.1X authenticator port interface flaps. A remote attacker can force the application to leak memory and perform denial of service attack.
Mitigation
Install updates from vendor's website.
This issue affects Juniper Networks Junos OS:
14.1X53 versions prior to 14.1X53-D54;
15.1X49 versions prior to 15.1X49-D240 ;
15.1X53 versions prior to 15.1X53-D593;
16.1 versions prior to 16.1R7-S8;
17.2 versions prior to 17.2R3-S4;
17.3 versions prior to 17.3R3-S8;
17.4 versions prior to 17.4R2-S11, 17.4R3-S2;
18.1 versions prior to 18.1R3-S10 ;
18.2 versions prior to 18.2R2-S7, 18.2R3-S3;
18.3 versions prior to 18.3R2-S4, 18.3R3-S2;
18.4 versions prior to 18.4R1-S7, 18.4R2-S4, 18.4R3-S2;
19.1 versions prior to 19.1R1-S5, 19.1R2-S2, 19.1R3;
19.2 versions prior to 19.2R1-S5, 19.2R2;
19.3 versions prior to 19.3R2-S3, 19.3R3;
19.4 versions prior to 19.4R1-S2, 19.4R2.
This issue does not affect Juniper Networks Junos OS 12.3, 15.1.Vulnerable software versions
Juniper Junos OS: 14.1R2-S10, 14.1R4-S12, 14.1R8-S4, 14.1X53-D15, 14.1X53-D16, 14.1X53-D25, 14.1X53-D26, 14.1X53-D27, 14.1X53-D30, 14.1X53-D35, 14.1X53-D40, 14.1X53-D42, 14.1X53-D43, 14.1X53-D44, 14.1X53-D45, 14.1X53-D46, 14.1X53-D47, 14.1X53-D48, 14.1X53-D49, 14.1X53-D50, 14.1X53-D51, 14.1X53-D53, 14.1, 14.1R5, 14.1R6, 14.1R9, 14.1x50, 14.1x51, 14.1x53, 15.1F2-S1, 15.1F2-S2, 15.1F2-S3, 15.1F2-S4, 15.1F2-S5, 15.1F2-S6, 15.1F2-S7, 15.1F2-S8, 15.1F2-S9, 15.1F2-S10, 15.1F2-S11, 15.1F2-S12, 15.1F2-S13, 15.1F2-S14, 15.1F2-S15, 15.1F2-S16, 15.1F2-S17, 15.1F2-S18, 15.1F2-S19, 15.1F2-S20, 15.1F4-S2, 15.1R4-S1, 15.1F4-S1-J1, 15.1R4-S2, 15.1R4-S3, 15.1R4-S4, 15.1R4-S5, 15.1R4-S6, 15.1R4-S7, 15.1R4-S8, 15.1R4-S9, 15.1R5-S4, 15.1R5-S5, 15.1F5-S3, 15.1F5-S4, 15.1R5-S7, 15.1R5-S51, 15.1R5-S52, 15.1R5-S53, 15.1R5-S54, 15.1R5-S55, 15.1R5-S56, 15.1R5-S57, 15.1F5-S1, 15.1F5-S2, 15.1F5-S5, 15.1F6-S8, 15.1F6-S13, 15.1R6-S1, 15.1R6-S2, 15.1F6-S1, 15.1F6-S2, 15.1F6-S3, 15.1F6-S4, 15.1F6-S5, 15.1F6-S6, 15.1F6-S7, 15.1R6-S3, 15.1F6-S9, 15.1F6-S10, 15.1F6-S12, 15.1R6-S4, 15.1R6-S5, 15.1R6-S6, 15.1R7-S2, 15.1R7-S3, 15.1R7-S4, 15.1R7-S5, 15.1R7-S6, 15.1R7-S7, 15.1R7-S8, 15.1F7-S1, 15.1F7-S2, 15.1R7-S9, 15.1R7-S10, 15.1R7-S11, 15.1R7-S12, 15.1R7-S13, 15.1X49-D10, 15.1X49-D20, 15.1X49-D30, 15.1X49-D35, 15.1X49-D40, 15.1X49-D45, 15.1X49-D50, 15.1X49-D60, 15.1X49-D65, 15.1X49-D70, 15.1X49-D75, 15.1X49-D80, 15.1X49-D90, 15.1X49-D100, 15.1X49-D101, 15.1X49-D110, 15.1X49-D120, 15.1X49-D130, 15.1X49-D131, 15.1X49-D140, 15.1X49-D150, 15.1X49-D160, 15.1X49-D161, 15.1X49-D170, 15.1X49-D171, 15.1X49-D180, 15.1x49-D181, 15.1x49-D190, 15.1X49-D200, 15.1X49-D210, 15.1X49-D211, 15.1X49-D220, 15.1X49-D221, 15.1X49-D230, 15.1X53-D10, 15.1X53-D20, 15.1X53-D21, 15.1X53-D30, 15.1X53-D32, 15.1X53-D33, 15.1X53-D34, 15.1X53-D40, 15.1X53-D45, 15.1X53-D47, 15.1X53-D48, 15.1X53-D50, 15.1X53-D51, 15.1X53-D52, 15.1X53-D55, 15.1X53-D57, 15.1X53-D58, 15.1X53-D59, 15.1X53-D60, 15.1X53-D61, 15.1X53-D62, 15.1X53-D63, 15.1X53-D64, 15.1X53-D65, 15.1X53-D66, 15.1X53-D67, 15.1X53-D68, 15.1X53-D69, 15.1X53-D70, 15.1X53-D113, 15.1X53-D210, 15.1X53-D230, 15.1X53-D231, 15.1X53-D232, 15.1X53-D233, 15.1X53-D234, 15.1X53-D235, 15.1X53-D236, 15.1X53-D237, 15.1X53-D238, 15.1X53-D470, 15.1X53-D471, 15.1X53-D472, 15.1X53-D490, 15.1X53-D495, 15.1X53-D496, 15.1X53-D497, 15.1X53-D590, 15.1X53-D591, 15.1X53-D592, 15.1, 15.1F1, 15.1R1, 15.1R2, 15.1F2, 15.1R3, 15.1F3, 15.1R4, 15.1F4, 15.1R5, 15.1F5, 15.1R6, 15.1F6, 15.1R7, 15.1F7, 15.1X49, 15.1X53, 15.1F, 15.1R, 16.1R3-S1, 16.1R3-S2, 16.1R3-S3, 16.1R3-S4, 16.1R3-S5, 16.1R3-S6, 16.1R3-S7, 16.1R3-S8, 16.1R3-S10, 16.1R3-S11, 16.1R4-S3, 16.1R4-S6, 16.1R4-S8, 16.1R4-S9, 16.1R4-S12, 16.1R4-S13, 16.1R5-S3, 16.1R5-S4, 16.1R6-S2, 16.1R6-S3, 16.1R6-S4, 16.1R6-S6, 16.1R7-S1, 16.1R7-S2, 16.1R7-S3, 16.1R7-S4, 16.1R7-S5, 16.1R7-S6, 16.1R7-S7, 16.1, 16.1R1, 16.1R2, 16.1R3, 16.1R4, 16.1R5, 16.1R6, 16.1R7, 16.1R, 17.2R1-S1, 17.2R1-S2, 17.2R1-S3, 17.2R1-S4, 17.2R1-S5, 17.2R1-S6, 17.2R1-S7, 17.2R1-S8, 17.2R1-S9, 17.2R2-S1, 17.2R2-S2, 17.2R2-S3, 17.2R2-S4, 17.2R2-S6, 17.2R2-S7, 17.2R2-S8, 17.2R3-S1, 17.2R3-S2, 17.2R3-S3, 17.2, 17.2R1, 17.2R2, 17.2R3, 17.3R1-S1, 17.3R1-S2, 17.3R1-S3, 17.3R1-S4, 17.3R2-S2, 17.3R2-S4, 17.3R2-S5, 17.3R3-S1, 17.3R3-S2, 17.3R3-S3, 17.3R3-S4, 17.3R3-S5, 17.3R3-S6, 17.3R3-S7, 17.3, 17.3R1, 17.3R2, 17.3R3, 17.4R1-S1, 17.4R1-S2, 17.4R1-S3, 17.4R1-S4, 17.4R1-S5, 17.4R1-S6, 17.4R1-S7, 17.4R1-S8, 17.4R2-S1, 17.4R2-S2, 17.4R2-S3, 17.4R2-S4, 17.4R2-S5, 17.4R2-S6, 17.4R2-S7, 17.4R2-S8, 17.4R2-S9, 17.4R2-S10, 17.4R2-S12, 17.4R2-S13, 17.4R3-S1, 17.4, 17.4R1, 17.4R2, 17.4R3, 18.1R2-S2, 18.1R2-S3, 18.1R2-S4, 18.1R3-S1, 18.1R3-S2, 18.1R3-S3, 18.1R3-S4, 18.1R3-S5, 18.1R3-S6, 18.1R3-S7, 18.1R3-S8, 18.1R3-S9, 18.1, 18.1R1, 18.1R2, 18.1R3, 18.2R1-S3, 18.2R1-S4, 18.2R1-S5, 18.2R2-S1, 18.2R2-S2, 18.2R2-S3, 18.2R2-S4, 18.2R2-S5, 18.2R2-S6, 18.2R2-S8, 18.2R3-S1, 18.2R3-S2, 18.2, 18.2R1, 18.2R2, 18.2R3, 18.3R1-S1, 18.3R1-S2, 18.3R1-S3, 18.3R1-S4, 18.3R1-S5, 18.3R1-S6, 18.3R1-S7, 18.3R2-S1, 18.3R2-S2, 18.3R2-S3, 18.3R3-S1, 18.3, 18.3R1, 18.3R2, 18.3R3, 18.4R1-S1, 18.4R1-S2, 18.4R1-S3, 18.4R1-S4, 18.4R1-S5, 18.4R1-S6, 18.4R1-S8, 18.4R2-S1, 18.4R2-S2, 18.4R2-S3, 18.4R2-S5, 18.4R2-S6, 18.4R2-S7, 18.4R2-S8, 18.4R2-S9, 18.4R2-S10, 18.4R3-S1, 18.4, 18.4R1, 18.4R2, 18.4R3, 19.1R1-S1, 19.1R1-S2, 19.1R1-S3, 19.1R1-S4, 19.1R1-S6, 19.1R2-S1, 19.1R2-S3, 19.1, 19.1R1, 19.1R, 19.1R2, 19.2R1-S1, 19.2R1-S2, 19.2R1-S3, 19.2R1-S4, 19.2R1-S6, 19.2R1-S7, 19.2R1-S8, 19.2R1-S9, 19.2, 19.2R1, 19.3R1-S1, 19.3R2-S1, 19.3R2-S2, 19.3R2-S4, 19.3R2-S5, 19.3R2-S6, 19.3R2-S7, 19.3, 19.3R1, 19.3R2, 19.4R1-S1, 19.4R1-S3, 19.4R1-S4, 19.4, 19.4R1, 20.1
External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11105&cat=SIRT_1&actp=LIST
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
