SB2017042312 - Improper Resource Shutdown or Release in Linux kernel
Published: April 23, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017042312
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Resource Shutdown or Release (CVE-ID: CVE-2017-8071)
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 uses a spinlock without considering that sleeping is possible in a USB HID request callback, which allows local users to cause a denial of service (deadlock) via unspecified vectors.
Remediation
Install update from vendor's website.
References
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.9
- http://www.openwall.com/lists/oss-security/2017/04/16/4
- http://www.securityfocus.com/bid/97991
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654
- https://github.com/torvalds/linux/commit/7a7b5df84b6b4e5d599c7289526eed96541a0654