gsd-2019-18282
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
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"id": "GSD-2019-18282",
"references": [
"https://www.suse.com/security/cve/CVE-2019-18282.html",
"https://access.redhat.com/errata/RHSA-2020:5441",
"https://access.redhat.com/errata/RHSA-2020:5437",
"https://access.redhat.com/errata/RHSA-2020:1769",
"https://access.redhat.com/errata/RHSA-2020:1567",
"https://linux.oracle.com/cve/CVE-2019-18282.html"
]
},
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"lastModifiedDate": "2022-04-18T15:48Z",
"publishedDate": "2020-01-16T16:15Z"
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}
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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