SB2019020910 - Stack out-of-bounds read in ntpsec (Alpine package)
Published: February 9, 2019
Security Bulletin ID
SB2019020910
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack out-of-bounds read (CVE-ID: CVE-2019-6443)
The vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a bug in ctl_getitem. A remote attacker can trigger a stack-based buffer over-read in read_sysvars in ntp_control.c in ntpd and perform a denial of service attack.
Remediation
Install update from vendor's website.