CVEvulnerability
CVE-2019-18198
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-10-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-772
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.
Affected configurations
• linux linux kernel (>= 5.3 < 5.3.4)
• canonical ubuntu linux 19.10
Related
Weakness · CWE (1)
- CWE-772 Missing Release of Resource after Effective Lifetime weakness
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4 Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26 Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26 Patch, Third Party Advisory
- https://launchpad.net/bugs/1847478 Exploit, 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-5.3.4 Release Notes, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca7a03c4175366a92cee0ccc4fec0038c3266e26 Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/ca7a03c4175366a92cee0ccc4fec0038c3266e26 Patch, Third Party Advisory
- https://launchpad.net/bugs/1847478 Exploit, 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