SB2017041004 - Denial of service in Linux Kernel
Published: April 10, 2017
Security Bulletin ID
SB2017041004
CSH 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 vulnerability.
1) Denial of service (CVE-ID: CVE-2017-7618)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an API operation calling its own callback flaw in crypto/ahash.c. A local attacker can trigger EBUSY on a full queue and cause an infinite recursion on the system.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.