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CVE-2019-18282

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2020-5437-01
Posted Dec 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5437-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer over-read and null pointer vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-18282, CVE-2020-10769, CVE-2020-14314, CVE-2020-14385, CVE-2020-24394, CVE-2020-25212, CVE-2020-25643
SHA-256 | 9d3708ba296874c5618cf8021564296dd4593f759f8d1496838e0ec07bf3fb11
Red Hat Security Advisory 2020-5441-01
Posted Dec 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5441-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a buffer over-read vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2019-18282, CVE-2020-10769, CVE-2020-14314, CVE-2020-14385, CVE-2020-24394, CVE-2020-25212, CVE-2020-25643
SHA-256 | 10fd709ec5317c6e9ff836aba241b2b37ab6793d5400a1db991201fa616e3608
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