9.1

CVE-2019-6443: ntpsec Out-of-bounds Read

CVSS: 9.1v3.0CriticalModified
AliasesUBUNTU-CVE-2019-6443DEBIAN-CVE-2019-6443
Published 16-01-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-6443 is a critical (CVSS 9.1) Out-of-bounds Read vulnerability in ntpsec. EPSS estimates a 66.88% chance of exploitation in the next 30 days, higher than 99.2% of scored vulnerabilities. 3 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.0 (NVD)
EPSS score
66.88%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits3reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:11103-1

Timeline

  1. 16-01-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in NTPsec before 1.1.3. Because of a bug in ctl_getitem, there is a stack-based buffer over-read in read_sysvars in ntp_control.c in ntpd.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

66.88%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 66.88% on 19-09-2026

19-09-202619-10-2026
EPSS score
66.88%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (dumpco.re)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (dumpco.re)

    Maturity: unknown

  • exploit-databasedoslinuxVerified

    NTPsec 1.1.2 - 'ctl_getitem' Out-of-Bounds Read (PoC)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • ntpsec< 1.1.3+dfsg1-1
Ntpsec1 product
Ubuntu1 product
  • ntpsec< 1.1.0+dfsg1-1ubuntu0.2

3 vendors · 3 products

References

7 links