Vulnerability in Linux Kernel
CVE-2019-18198
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 19.10
Weakness classification (CWE)
References
- github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- launchpad.net/bugs/1847478 (Exploit, Third Party Advisory, Issue Tracking)
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4 (Release Notes, Vendor Advisory)
- usn.ubuntu.com/4161-1/ (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20191031-0005/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-18198?
- CVE-2019-18198 is a high-severity vulnerability in Linux Kernel, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.8/10. Published 2019-10-18.
- How severe is CVE-2019-18198?
- High severity. CVSS v3 base score is 7.8 out of 10.