High severity7.8NVD Advisory· Published Oct 18, 2019· Updated Jun 17, 2026
CVE-2019-18198
CVE-2019-18198
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.
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Affected products
4- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- Linux/kerneldescription
Patches
Vulnerability mechanics
References
6- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
- github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26nvdPatchThird Party Advisory
- launchpad.net/bugs/1847478nvdExploitIssue TrackingThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4nvdRelease NotesVendor Advisory
- security.netapp.com/advisory/ntap-20191031-0005/nvdThird Party Advisory
- usn.ubuntu.com/4161-1/nvdThird Party Advisory
News mentions
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