CVE-2020-15025 — Missing Release of Memory after Effective Lifetime in NTP

CWE-401 — Missing Release of Memory after Effective LifetimeCWE-400 — Uncontrolled Resource Consumption9 documents8 sources
Severity
4.9MEDIUMNVD
CNA4.4
EPSS
3.1%
top 13.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
NTPOpensuse LeapOracle ZFS Storage Appliance KIT
Timeline
PublishedJun 24
Latest updateMay 24

Description

ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HExploitability: 1.2 | Impact: 3.6

Affected Packages4 packages

▶NVDntp/ntp4.3.97 — 4.3.101+1
▶Debianntp/ntp< 1:4.2.8p15-1
▶NVDopensuse/leap15.1, 15.2+1

Patches

Patch: www.oracle.com ↗Patch: www.oracle.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-p62f-hvr2-5w5f: ntpd in ntp 4↗2022-05-24
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OSV
CVE-2020-15025: ntpd in ntp 4↗2020-06-24
▶
CVEList
CVE-2020-15025: ntpd in ntp 4↗2020-06-24
▶

📋Vendor Advisories

3
Ubuntu
NTP vulnerability↗2021-12-06
▶
Red Hat
ntp: Resource exhaustion via memory leak with CMAC keys↗2020-06-23
▶
Debian
CVE-2020-15025: ntp - ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attacke...↗2020
▶

💬Community

2
Bugzilla
CVE-2020-15025 ntp: memory leak with CMAC keys can lead to DoS [fedora-all]↗2020-06-29
▶
Bugzilla
CVE-2020-15025 ntp: Resource exhaustion via memory leak with CMAC keys↗2020-06-24
▶