Buffer overflow in TCP/IP stack in Juniper Networks Junos OS
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-0283 CVE-2021-0284 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Juniper Junos OS Operating systems & Components / Operating system |
| Vendor | Juniper Networks, Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU54993
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-0283
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Vulnerable software versionsJuniper Junos OS: 12.3 - 21.2R1-S2
External linkshttp://kb.juniper.net/JSA11200
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.
2) Buffer overflow
EUVDB-ID: #VU54994
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-0284
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe 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. MitigationInstall updates from vendor's website.
Vulnerable software versionsJuniper Junos OS: 17.3 - 21.2R1-S2
External linkshttp://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.
