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.
Scores
CVSS v3
7.8
EPSS
0.0010
EPSS Percentile
27.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-772
Status
published
Products (2)
canonical/ubuntu_linux
19.10
linux/linux_kernel
5.3 - 5.3.4
Published
Oct 18, 2019
Tracked Since
Feb 18, 2026