CVE-2016-3137

Published: 2 May 2016

drivers/usb/serial/cypress_m8.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both an interrupt-in and an interrupt-out endpoint descriptor, related to the cypress_generic_port_probe and cypress_open functions.

From the Ubuntu Security Team

Sergej Schumilo, Hendrik Schwartke, and Ralf Spenneberg discovered that the Cypress M8 USB device driver in the Linux kernel did not properly validate USB device descriptors. An attacker with physical access could use this to cause a denial of service (system crash).

Notes

android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

Priority

Low

CVSS 3 base score: 4.6

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3137
• http://www.openwall.com/lists/oss-security/2016/03/14/3
• https://bugzilla.redhat.com/show_bug.cgi?id=1283368
• http://seclists.org/bugtraq/2016/Mar/55
• https://ubuntu.com/security/notices/USN-2965-1
• https://ubuntu.com/security/notices/USN-2965-4
• https://ubuntu.com/security/notices/USN-2965-3
• https://ubuntu.com/security/notices/USN-2965-2
• https://ubuntu.com/security/notices/USN-2971-2
• https://ubuntu.com/security/notices/USN-2971-3
• https://ubuntu.com/security/notices/USN-2971-1
• https://ubuntu.com/security/notices/USN-2970-1
• https://ubuntu.com/security/notices/USN-2968-1
• https://ubuntu.com/security/notices/USN-2968-2
• https://ubuntu.com/security/notices/USN-2996-1
• https://ubuntu.com/security/notices/USN-2997-1
• https://ubuntu.com/security/notices/USN-3000-1
• NVD
• Launchpad
• Debian

Bugs

• https://launchpad.net/bugs/1556878