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    CVE-2019-6443

    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.

    Published:Jan 16, 2019
    Last Modified:Nov 21, 2024
    EPS:Jan 16, 2019
    EPSS Score:0.13514
    CVSS Score:9.1

    Affected Products

    Vendor
    Ntpsec
    Product
    Ntpsec

    Exploits

    https://dumpco.re/blog/ntpsec-bugshttps://dumpco.re/bugs/ntpsec-oobread1https://www.exploit-db.com/exploits/46175/https://dumpco.re/blog/ntpsec-bugshttps://dumpco.re/bugs/ntpsec-oobread1https://www.exploit-db.com/exploits/46175/https://www.exploit-db.com/exploits/46175

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-18321 (CVSS 4.7) — Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd…
    CVE-2023-4012 (CVSS 7.5) — ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client reques…
    CVE-2021-22212 (CVSS 4) — ntpkeygen can generate keys that ntpd fails to parse. NTPsec 1.2.0 allows ntpkeygen to generate keys with '#' …
    CVE-2019-6444 (CVSS 9.1) — An issue was discovered in NTPsec before 1.1.3. process_control() in ntp_control.c has a stack-based buffer ov…
    CVE-2019-6445 (CVSS 6.5) — An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can cause a NULL pointer dereference…
    CVE-2019-6442 (CVSS 6.5) — An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can write one byte out of bounds in …
    CVE-2016-1551 (CVSS 3.7) — ntpd in NTP 4.2.8p3 and NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 relies on the underlying operating sys…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High