CVE-2017-1000111

 

Published at: - 05-10-2017 03:29

Last modified: - 17-01-2023 10:04

Total changes: - 4

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://access.redhat.com/security/cve/cve-2017-1000111
• 1039132-Third Party Advisory, VDB Entry
• 100267-Third Party Advisory, VDB Entry
• DSA-3981-Third Party Advisory
• RHSA-2017:3200-Third Party Advisory
• RHSA-2017:2931-Third Party Advisory
• RHSA-2017:2930-Third Party Advisory
• RHSA-2017:2918-Third Party Advisory

 

Keywords

NVD

 

CVE-2017-1000111

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures