CVE-2019-18282
- State
- Published
- Severity
- Not scored
- Published
- Jan 16, 2020
- Updated
- Aug 5, 2024
- Reserved
- Oct 23, 2019
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2
- https://security.netapp.com/advisory/ntap-20200204-0002/
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security updatemailing-list
- https://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2o
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