CVE-2019-18282
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.
Risk Information
Base Score
5.3
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score
Exploitation Probability
0.683
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| (RHSA-2020:5437) kernel security and bug fix update bpftool-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-abi-whitelists-3.10.0-1160.11.1.el7.noarch.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-debug-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-debug-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-doc-3.10.0-1160.11.1.el7.noarch.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-headers-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-tools-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-tools-libs-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update kernel-tools-libs-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update perf-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (RHSA-2020:5437) kernel security and bug fix update python-perf-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Bpftool update (ELSA-2020-5437) bpftool-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel update (ELSA-2020-5437) kernel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-abi-whitelists update (ELSA-2020-5437) kernel-abi-whitelists-3.10.0-1160.11.1.el7.noarch.rpm | Linux |
| Kernel-debug update (ELSA-2020-5437) kernel-debug-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-debug-devel update (ELSA-2020-5437) kernel-debug-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-devel update (ELSA-2020-5437) kernel-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-doc update (ELSA-2020-5437) kernel-doc-3.10.0-1160.11.1.el7.noarch.rpm | Linux |
| Kernel-headers update (ELSA-2020-5437) kernel-headers-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-tools update (ELSA-2020-5437) kernel-tools-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-tools-libs update (ELSA-2020-5437) kernel-tools-libs-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Kernel-tools-libs-devel update (ELSA-2020-5437) kernel-tools-libs-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Perf update (ELSA-2020-5437) perf-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Python-perf update (ELSA-2020-5437) python-perf-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update bpftool-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-abi-whitelists-3.10.0-1160.11.1.el7.noarch.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-debug-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-debug-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-doc-3.10.0-1160.11.1.el7.noarch.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-headers-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-tools-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-tools-libs-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update kernel-tools-libs-devel-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update perf-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| (CESA-2020:5437) kernel security and bug fix update python-perf-3.10.0-1160.11.1.el7.x86_64.rpm | Linux |
| Use of Insufficiently Random Values Vulnerability (CVE-2019-18282) | NCM |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234