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    CVE-2019-5436

    A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.

    Published:May 22, 2019
    Last Modified:Apr 15, 2026
    EPS:May 28, 2019
    EPSS Score:0.13273
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    F5
    Product
    Traffix Signaling Delivery Controller
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Haxx
    Product
    Libcurl
    Vendor
    Netapp
    Product
    Hci Management Node
    Vendor
    Netapp
    Product
    Solidfire
    Vendor
    Netapp
    Product
    Steelstore Cloud Integrated Storage
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Oracle
    Product
    Enterprise Manager Ops Center
    Vendor
    Oracle
    Product
    Mysql Server
    Vendor
    Oracle
    Product
    Oss Support Tools
    Vendor
    Redhat
    Product
    Ansible Tower
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Jboss Core Services
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    https://curl.haxx.se/docs/CVE-2019-5436.htmlhttps://curl.haxx.se/docs/CVE-2019-5436.html

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    CVE-2026-49975 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of …
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    CVE-2026-31431 (CVSS 7.8) — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating …
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    CVE-2026-4775 (CVSS 7.8) — A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerabili…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00008.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00017.html
    http://www.openwall.com/lists/oss-security/2019/09/11/6
    https://curl.haxx.se/docs/CVE-2019-5436.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SMG3V4VTX2SE3EW3HQTN3DDLQBTORQC2/
    https://seclists.org/bugtraq/2020/Feb/36
    https://security.gentoo.org/glsa/202003-29
    https://security.netapp.com/advisory/ntap-20190606-0004/
    https://support.f5.com/csp/article/K55133295
    https://support.f5.com/csp/article/K55133295?utm_source=f5support&amp%3Butm_medium=RSS
    https://www.debian.org/security/2020/dsa-4633
    https://www.oracle.com/security-alerts/cpuapr2020.html
    https://www.oracle.com/security-alerts/cpuoct2020.html
    https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00008.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00017.html
    http://www.openwall.com/lists/oss-security/2019/09/11/6
    https://curl.haxx.se/docs/CVE-2019-5436.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SMG3V4VTX2SE3EW3HQTN3DDLQBTORQC2/
    https://seclists.org/bugtraq/2020/Feb/36
    https://security.gentoo.org/glsa/202003-29
    https://security.netapp.com/advisory/ntap-20190606-0004/
    https://support.f5.com/csp/article/K55133295
    https://support.f5.com/csp/article/K55133295?utm_source=f5support&amp%3Butm_medium=RSS
    https://www.debian.org/security/2020/dsa-4633
    https://www.oracle.com/security-alerts/cpuapr2020.html
    https://www.oracle.com/security-alerts/cpuoct2020.html
    https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

    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