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Juniper Patches Serious Flaws in Junos OS

Juniper Networks this week informed customers that its Junos operating system is affected by many serious vulnerabilities, including a flaw that may have been triggered during malicious network probing.

Juniper on Wednesday published nearly two dozen advisories describing security holes in Junos, the operating system that powers its networking and security products. The company has provided patches and mitigations for each of the vulnerabilities.

One of the more interesting issues is CVE-2018-0049, which allows an attacker to crash the Junos kernel by sending specially crafted MPLS packets. Juniper noted that a single packet can cause a denial-of-service (DoS) condition, but an attacker can launch a sustained DoS attack by continually sending malicious packets.

Juniper says that while it's not aware of instances where this vulnerability was specifically targeted by hackers, the company is aware of "possible malicious network probing which may have triggered this issue."


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