VulnerabilityModified

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…

HIGH 7.8EPSS 0.46%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.46% probability · 38th percentile
CISA KEV: Not listed
Weakness: CWE-772
Affected: linux/linux kernel · canonical/ubuntu linux
Source: cve@mitre.org

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4Release Notes, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26Patch, Third Party Advisory
https://launchpad.net/bugs/1847478Exploit, Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0005/Third Party Advisory
https://usn.ubuntu.com/4161-1/Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4Release Notes, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26Patch, Third Party Advisory
https://launchpad.net/bugs/1847478Exploit, Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0005/Third Party Advisory
https://usn.ubuntu.com/4161-1/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.