{"schemaVersion":3,"id":"CVE-2022-22215","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A Missing Release of File Descriptor or Handle after Effective Lifetime vulnerability in plugable authentication module (PAM) of Juniper Networks Junos OS and Junos OS Evolved allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS). It is possible that after the termination of a gRPC connection the respective/var/run/<pid>.env file is not getting deleted which if occurring repeatedly can cause inode exhaustion. Inode exhaustion can present itself in two different ways: 1. The following log message can be observed: host kernel: pid <pid> (<process>), uid <uid> inumber <number> on /.mount/var: out of inodes which by itself is a clear indication. 2. The following log message can be observed: host <process>[<pid>]: ... : No space left on device which is not deterministic and just a representation of a write error which could have several reasons. So the following check needs to be done: user@host> show system storage no-forwarding Filesystem Size Used Avail Capacity Mounted on /dev/ada1p1 475M 300M 137M 69% /.mount/var which indicates that the write error is not actually due to a lack of disk space. If either 1. or 2. has been confirmed, then the output of: user@host> file list /var/run/*.env | count need to be checked and if it indicates a high (>10000) number of files the system has been affected by this issue. This issue affects: Juniper Networks Junos OS All versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R2-S6, 19.4R3-S7; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.4R3-EVO; 21.1 versions prior to 21.1R3-S1-EVO; 21.2 versions prior to 21.2R1-S1-EVO, 21.2R2-EVO.","dates":{"published":"2022-07-20T14:15:37.769Z","modified":"2024-09-17T01:11:06.894Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.5,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00625,"percentile":0.49313,"severity":"low","asOf":"2026-10-22T00:00:00.000Z","change":{"pp":0.018000000000000047,"baselineDate":"2026-09-22T00:00:00.000Z","baselineScore":0.00607},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.00625,"percentile":0.49313}],"last30":[{"date":"2026-09-22T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00607,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00625,"percentile":null},{"date":"2026-10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