Description
The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.
CVSS breakdown
CVSS 3.0
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Unknown / kernel4.15-rc8 – 4.15-rc8
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3843
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3666
- MISChttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3651
- MAILING_LISThttps://marc.info/?l=linux-netdev&m=151500466401174&w=2
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646