Memory leak in ntp

1) Memory leak

EUVDB-ID: #VU29293

Risk: Low

CVSSv4.0: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-15025

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when processing CMAC authentication. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ntp: 4.2.8p11 - 4.3.100

CPE2.3

• cpe:2.3:a:ntp_org:ntp:4.2.8p11:*:*:*:*:*:*:*
• cpe:2.3:a:ntp_org:ntp:4.2.8p12:*:*:*:*:*:*:*
• cpe:2.3:a:ntp_org:ntp:4.2.8p13:*:*:*:*:*:*:*

External links

https://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/NEWS

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.