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              "value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the the\u0026nbsp;Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS).\u003cbr\u003e\u003cbr\u003eThe pkid is responsible for the certificate verification. Upon a failed verification, the pkid uses all CPU resources and becomes unresponsive to future verification attempts. This means that a\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003ell subsequent VPN negotiations depending on certificate verification will fail.\u003c/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eThis CPU utilization of pkid can be checked using this command: \u003cbr\u003e\u0026nbsp; root@srx\u0026gt; show system processes extensive | match pkid\u003cbr\u003e\u0026nbsp; xxxxx \u2003root \u2003103\u2003 0 \u2003846M \u2003136M \u2003CPU1 \u20031\u0026nbsp;569:00 100.00% pkid\u003cbr\u003e\u003cbr\u003eThis issue affects:\u003cbr\u003eJuniper Networks Junos OS\u003cbr\u003e\u003cul\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eAll\u0026nbsp;versions prior to 20.4R3-S10;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e21.2 versions prior to 21.2R3-S7;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e21.4 versions prior to 21.4R3-S5;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S4;\u003c/li\u003e\u003cli\u003e22.2 versions prior to\u0026nbsp;22.2R3-S3;\u003c/li\u003e\u003cli\u003e22.3 versions prior to\u0026nbsp;22.3R3-S1;\u003c/li\u003e\u003cli\u003e22.4 versions prior to\u0026nbsp;22.4R3;\u003c/li\u003e\u003cli\u003e23.2 versions prior to\u0026nbsp;23.2R1-S2, 23.2R2.\u003c/li\u003e\u003c/ul\u003e\u003c/span\u003e\u003cbr\u003e"
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