VULNERABILITY INTELLIGENCE

CVE-2019-20422

CVSS score5.5 MEDIUM
EPSS probability0.43%
CISA KEVNot currently listed
Published2020-01-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel before 5.3.4, fib6_rule_lookup in net/ipv6/ip6_fib.c mishandles the RT6_LOOKUP_F_DST_NOREF flag in a reference-count decision, leading to (for example) a crash that was identified by syzkaller, aka CID-7b09c2d052db.

Weakness classification

  • nvd@nist.gov: CWE-755

Primary references