CVE-2021-31359
Summary
| CVE | CVE-2021-31359 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-10-19 19:15:00 UTC |
| Updated | 2022-10-27 13:05:00 UTC |
| Description | A local privilege escalation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged user to cause the Juniper DHCP daemon (jdhcpd) process to crash, resulting in a Denial of Service (DoS), or execute arbitrary commands as root. Continued processing of malicious input will repeatedly crash the system and sustain the Denial of Service (DoS) condition. Systems are only vulnerable if jdhcpd is running, which can be confirmed via the 'show system processes' command. For example: root@host# run show system processes extensive | match dhcp 26537 root -16 0 97568K 13692K RUN 0 0:01 3.71% jdhcpd This issue affects: Juniper Networks Junos OS: All versions, including the following supported releases: 15.1 versions prior to 15.1R7-S10; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-S3-EVO; All versions of 21.1-EVO. |
Risk And Classification
Problem Types: CWE-269
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Juniper | Junos | 15.1 | - | All | All |
| Operating System | Juniper | Junos | 15.1 | a1 | All | All |
| Operating System | Juniper | Junos | 15.1 | f | All | All |
| Operating System | Juniper | Junos | 15.1 | f1 | All | All |
| Operating System | Juniper | Junos | 15.1 | f2 | All | All |
| Operating System | Juniper | Junos | 15.1 | f2-s1 | All | All |
| Operating System | Juniper | Junos | 15.1 | f2-s2 | All | All |
| Operating System | Juniper | Junos | 15.1 | f2-s3 | All | All |
| Operating System | Juniper | Junos | 15.1 | f2-s4 | All | All |
| Operating System | Juniper | Junos | 15.1 | f3 | All | All |
| Operating System | Juniper | Junos | 15.1 | f4 | All | All |
| Operating System | Juniper | Junos | 15.1 | f5 | All | All |
| Operating System | Juniper | Junos | 15.1 | f5-s7 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s1 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s10 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s12 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s2 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s3 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s4 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s5 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s6 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s7 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s8 | All | All |
| Operating System | Juniper | Junos | 15.1 | f6-s9 | All | All |
| Operating System | Juniper | Junos | 15.1 | f7 | All | All |
| Operating System | Juniper | Junos | 15.1 | r | All | All |
| Operating System | Juniper | Junos | 15.1 | r1 | All | All |
| Operating System | Juniper | Junos | 15.1 | r2 | All | All |
| Operating System | Juniper | Junos | 15.1 | r3 | All | All |
| Operating System | Juniper | Junos | 15.1 | r4 | All | All |
| Operating System | Juniper | Junos | 15.1 | r4-s7 | All | All |
| Operating System | Juniper | Junos | 15.1 | r4-s8 | All | All |
| Operating System | Juniper | Junos | 15.1 | r4-s9 | All | All |
| Operating System | Juniper | Junos | 15.1 | r5 | All | All |
| Operating System | Juniper | Junos | 15.1 | r5-s1 | All | All |
| Operating System | Juniper | Junos | 15.1 | r5-s3 | All | All |
| Operating System | Juniper | Junos | 15.1 | r5-s5 | All | All |
| Operating System | Juniper | Junos | 15.1 | r5-s6 | All | All |
| Operating System | Juniper | Junos | 15.1 | r6 | All | All |
| Operating System | Juniper | Junos | 15.1 | r6-s1 | All | All |
| Operating System | Juniper | Junos | 15.1 | r6-s2 | All | All |
| Operating System | Juniper | Junos | 15.1 | r6-s3 | All | All |
| Operating System | Juniper | Junos | 15.1 | r6-s4 | All | All |
| Operating System | Juniper | Junos | 15.1 | r6-s6 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s1 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s2 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s3 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s4 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s5 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s6 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s7 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s8 | All | All |
| Operating System | Juniper | Junos | 15.1 | r7-s9 | All | All |
| Operating System | Juniper | Junos | 17.4 | - | All | All |
| Operating System | Juniper | Junos | 17.4 | r1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s7 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s10 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s11 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s12 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s6 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s7 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s8 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s9 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 18.3 | - | All | All |
| Operating System | Juniper | Junos | 18.3 | r1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 18.3 | r3 | All | All |
| Operating System | Juniper | Junos | 18.3 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 18.3 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 18.4 | - | All | All |
| Operating System | Juniper | Junos | 18.4 | r1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s7 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s6 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s7 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s8 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s6 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s7 | All | All |
| Operating System | Juniper | Junos | 18.4 | r3-s8 | All | All |
| Operating System | Juniper | Junos | 19.1 | - | All | All |
| Operating System | Juniper | Junos | 19.1 | r1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 19.1 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 19.2 | - | All | All |
| Operating System | Juniper | Junos | 19.2 | r1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 19.2 | r2 | All | All |
| Operating System | Juniper | Junos | 19.2 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r3 | All | All |
| Operating System | Juniper | Junos | 19.2 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 19.3 | - | All | All |
| Operating System | Juniper | Junos | 19.3 | r1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 19.3 | r3 | All | All |
| Operating System | Juniper | Junos | 19.3 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.4 | r2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 19.4 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 19.4 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 20.1 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 20.1 | r2 | All | All |
| Operating System | Juniper | Junos | 20.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 20.1 | r3 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 20.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 20.2 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 20.2 | r3 | All | All |
| Operating System | Juniper | Junos | 20.2 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 20.3 | r1 | All | All |
| Operating System | Juniper | Junos | 20.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.3 | r2 | All | All |
| Operating System | Juniper | Junos | 20.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 20.4 | r2 | All | All |
| Operating System | Juniper | Junos | 21.1 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 20.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.1 | - | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.1 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.1 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 2021-10 Security Bulletin: Junos OS and Junos OS Evolved: Local Privilege Escalation and Denial of Service - Juniper Networks | CONFIRM | kb.juniper.net | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: Juniper SIRT would like to acknowledge and thank awxylitol for responsibly reporting this vulnerability.
There are currently no legacy QID mappings associated with this CVE.