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
Link | Resource |
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https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10 | Mailing List Vendor Advisory |
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2 | Mailing List Patch Vendor Advisory |
https://security.netapp.com/advisory/ntap-20200204-0002/ | Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html | Mailing List Third Party Advisory |
https://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2o | Third Party Advisory |
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Information
Published : 2020-01-16 08:15
Updated : 2022-04-18 08:48
NVD link : CVE-2019-18282
Mitre link : CVE-2019-18282
JSON object : View
CWE
CWE-330
Use of Insufficiently Random Values
Products Affected
netapp
- a400_firmware
- 8700
- cloud_backup
- a700s
- a700s_firmware
- h610s_firmware
- active_iq_unified_manager
- solidfire
- steelstore_cloud_integrated_storage
- 8700_firmware
- 8300_firmware
- a400
- h610s
- hci_management_node
- data_availability_services
- e-series_santricity_os_controller
- 8300
linux
- linux_kernel
debian
- debian_linux