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.
References
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
Configuration 3 (hide)
|
Configuration 4 (hide)
|
History
No history.
Information
Published : 2017-10-05 01:29
Updated : 2025-04-20 01:37
NVD link : CVE-2017-1000111
Mitre link : CVE-2017-1000111
CVE.ORG link : CVE-2017-1000111
JSON object : View
Products Affected
redhat
- enterprise_linux_workstation
- enterprise_linux_server_aus
- enterprise_linux_desktop
- enterprise_linux
- enterprise_linux_server
- enterprise_linux_server_eus
- enterprise_linux_server_tus
debian
- debian_linux
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write