Linux kernel: heap out-of-bounds in AF_PACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packet_set_ring. Previously with PACKET_VERSION. This time with PACKET_RESERVE. The solution is similar: lock the socket for the update. This issue may be exploitable, we did not investigate further. As this issue affects PF_PACKET sockets, it requires CAP_NET_RAW in the process namespace. But note that with user namespaces enabled, any process can create a namespace in which it has CAP_NET_RAW.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2017-10-04T01:00:00
Updated: 2024-08-05T21:53:06.811Z
Reserved: 2017-10-03T00:00:00
Link: CVE-2017-1000111
Vulnrichment
No data.
NVD
Status : Modified
Published: 2017-10-05T01:29:04.430
Modified: 2024-11-21T03:04:11.327
Link: CVE-2017-1000111
Redhat