#VU54994 Buffer overflow in Juniper Junos OS - CVE-2021-0284
Vulnerability identifier: #VU54994
Vulnerability risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/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-119
Exploitation vector: 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 a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the Juniper Junos OS TCP/IP stack. A remote attacker can send specific sequences of packets to the device, trigger memory corruption and perform a denial of service (DoS) attack.Mitigation
Install updates from vendor's website.
Vulnerable software versions
Juniper Junos OS: 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, 17.3R3-S8, 17.3R3-S9, 17.3R3-S10, 17.3R3-S11, 17.3, 17.3R1, 17.3R2, 17.3R3, 19.3R1-S1, 19.3R2-S1, 19.3R2-S2, 19.3R2-S3, 19.3R2-S4, 19.3R2-S5, 19.3R2-S6, 19.3R2-S7, 19.3R3-S1, 19.3R3-S2, 19.3, 19.3R1, 19.3R2, 19.3R3, 19.4R1-S1, 19.4R1-S2, 19.4R1-S3, 19.4R1-S4, 19.4R2-S1, 19.4R2-S2, 19.4R2-S3, 19.4R2-S4, 19.4R2-S5, 19.4R2-S6, 19.4R2-S7, 19.4R2-S8, 19.4R3-S1, 19.4R3-S2, 19.4R3-S3, 19.4R3-S4, 19.4, 19.4R1, 19.4R2, 19.4R3, 20.2R1-S1, 20.2R1-S2, 20.2R1-S3, 20.2R2-S1, 20.2R2-S2, 20.2R2-S3, 20.2R3-S1, 20.2, 20.2R1, 20.2R2, 20.2R3, 20.4R1-S1, 20.4R2-S1, 20.4R2-S2, 20.4, 20.4R1, 20.4R2, 21.1R1-S1, 21.1, 21.1R1, 21.2R1-S1, 21.2R1-S2, 21.2R1
External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11200&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 Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
