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f5F5F5:K32380005
HistoryMar 08, 2021 - 12:00 a.m.

K32380005 : Linux kernel vulnerability CVE-2019-18282

2021-03-0800:00:00
my.f5.com
54

AI Score

6.3

Confidence

Low

EPSS

0.002

Percentile

64.8%

Security Advisory Description

The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code. (CVE-2019-18282)

Impact

An attacker can exploit this vulnerability and access sensitive information on an affected system.