cve-2019-18282
Vulnerability from cvelistv5
Published
2020-01-16 15:22
Modified
2024-08-05 01:47
Severity
Summary
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.
References
SourceURLTags
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10Mailing List, Vendor Advisory
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2Mailing List, Patch, Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20200204-0002/Third Party Advisory
cve@mitre.orghttps://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2oThird Party Advisory
Impacted products
VendorProduct
n/an/a
Show details on NVD website

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  }
}


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