SB2017013003 - Denial of service in NTP
Published: January 30, 2017 Updated: June 10, 2021
Security Bulletin ID
SB2017013003
Severity
Medium
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) Out-of-bounds read (CVE-ID: CVE-2016-2518)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the MATCH_ASSOC function. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and cause a denial of service condition on the system.
Remediation
Install update from vendor's website.
References
- https://www.kb.cert.org/vuls/id/718152
- http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_ntp_4_2_8p7_Security
- http://support.ntp.org/bin/view/Main/NtpBug3009
- http://www.securityfocus.com/bid/88226
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- https://security.gentoo.org/glsa/201607-15
- http://www.securitytracker.com/id/1035705
- http://www.debian.org/security/2016/dsa-3629
- https://security.netapp.com/advisory/ntap-20171004-0002/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
- https://access.redhat.com/errata/RHSA-2016:1141
- http://rhn.redhat.com/errata/RHSA-2016-1552.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf