CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2019-18198
High (7.8). EPSS 0.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
- CWE
- CWE-772
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- linux:linux_kernel
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26
- https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26
- https://launchpad.net/bugs/1847478
- https://security.netapp.com/advisory/ntap-20191031-0005/