CVE-2019-18198

PoC —

CVSS 3.1

7.8 high

EPSS

<1%p38

Published

Oct 18, 2019 (Oct 18, 2019)

Modified

Jun 17, 2026

Description

In the Linux kernel before 5.3.4, a reference count usage error in the fib6_rule_suppress() function in the fib6 suppression feature of net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.

Vendors: linux canonical
Products: linux kernel, ubuntu linux
Weakness: CWE-772
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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