CVE-2021-0258
Description
A vulnerability in the forwarding of transit TCPv6 packets received on the Ethernet management interface of Juniper Networks Junos OS allows an attacker to trigger a kernel panic, leading to a Denial of Service (DoS). Continued receipt and processing of these transit packets will create a sustained Denial of Service (DoS) condition. This issue only occurs when TCPv6 packets are routed through the management interface. Other transit traffic, and traffic destined to the management interface, are unaffected by this vulnerability. This issue was introduced as part of a TCP Parallelization feature added in Junos OS 17.2, and affects systems with concurrent network stack enabled. This feature is enabled by default, but can be disabled (see WORKAROUND section below). This issue affects Juniper Networks Junos OS: 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 17.2R1.
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Multiple Vulnerabilities are fixed in junos 17.2R3-S4 | NCM |
| Multiple Vulnerabilities are fixed in junos 17.3R3-S9 | NCM |
| Vulnerabilities CVE-2020-1640,CVE-2020-1653,CVE-2021-0207,CVE-2021-0258 are fixed in junos 17.4R2-S11 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.1R3-S11 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.2R3-S5 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.3R2-S4 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.4R2-S5 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.1R2-S2 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.2R1-S5 | NCM |
| Vulnerabilities CVE-2021-0258 are fixed in junos 19.3R2-S4 | NCM |
| Vulnerabilities CVE-2020-1645,CVE-2021-0258,CVE-2021-0267,CVE-2021-0268 are fixed in junos 19.4R1-S3 | NCM |
| Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition) Vulnerability (CVE-2021-0258) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234