Description
A flaw was found in the Linux Kernel where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect() and close() function may allow an attacker using the AF_VSOCK protocol to gather a 4 byte information leak or possibly intercept or corrupt AF_VSOCK messages destined to other clients.
CVSS breakdown
CVSS 3.0
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected products
- Unknown / kerneln/a – n/a
References
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14625
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3872-1/
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3878-1/
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3871-5/
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3878-2/
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3871-4/
- MISChttps://syzkaller.appspot.com/bug?extid=bd391451452fb0b93039
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3871-1/
- VENDOR_ADVISORYhttps://usn.ubuntu.com/3871-3/
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2043
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2029
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:4154