Buffer overflow in ntp - CVE-2015-7853
Published: June 10, 2021
Vulnerability identifier: #VU54023
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2015-7853
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ntp.org
Affected software:
ntp
ntp
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the "datalen" parameter in the "refclock" driver. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2015-7853
Install updates from vendor's website.
Sources
- https://bugzilla.redhat.com/show_bug.cgi?id=1274262
- http://www.securityfocus.com/bid/77273
- http://support.ntp.org/bin/view/Main/NtpBug2920
- https://security.gentoo.org/glsa/201607-15
- http://www.securitytracker.com/id/1033951
- https://security.netapp.com/advisory/ntap-20171004-0001/
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf