Bug 1619846 (CVE-2018-14625) - CVE-2018-14625 kernel: use-after-free Read in vhost_transport_send_pkt
Summary: CVE-2018-14625 kernel: use-after-free Read in vhost_transport_send_pkt
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-14625
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1619847 1619848 1619849 1623776 1642210 1642211 1772238 1772239 1772240 1772241
Blocks: 1619850
TreeView+ depends on / blocked
 
Reported: 2018-08-21 21:53 UTC by Laura Pardo
Modified: 2023-02-27 19:09 UTC (History)
52 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found 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 impersonate AF_VSOCK messages destined to other clients or leak kernel memory.
Clone Of:
Environment:
Last Closed: 2019-08-06 13:19:04 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:2029 0 None None None 2019-08-06 12:04:18 UTC
Red Hat Product Errata RHSA-2019:2043 0 None None None 2019-08-06 12:06:41 UTC
Red Hat Product Errata RHSA-2019:4154 0 None None None 2019-12-10 12:02:19 UTC

Description Laura Pardo 2018-08-21 21:53:33 UTC 
A flaw was found in Linux Kernel in which 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.


Introduced by:
https://github.com/torvalds/linux/commit/433fc58e6bf2c8bd97e57153ed28e64fd78207b8

References:
https://syzkaller.appspot.com/bug?extid=bd391451452fb0b93039
Comment 1 Laura Pardo 2018-08-21 21:54:34 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1619847]
Comment 7 errata-xmlrpc 2019-08-06 12:04:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2029
Comment 8 errata-xmlrpc 2019-08-06 12:06:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2043
Comment 9 Product Security DevOps Team 2019-08-06 13:19:04 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-14625
Comment 13 errata-xmlrpc 2019-12-10 12:02:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:4154 https://access.redhat.com/errata/RHSA-2019:4154
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