CVE-2019-5436
HIGHCVSS 7.8/10EPSS 49.74%
Last modified
CVE-2019-5436 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 49.74% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Libcurl | >= 7.19.4, <= 7.64.1 |
| Opensuse | Leap | 15.0 |
| Opensuse | Leap | 15.1 |
| Opensuse | Leap | 42.3 |
| Fedoraproject | Fedora | 29 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| F5 | Traffix Signaling Delivery Controller | >= 5.0.0, <= 5.1.0 |
| Netapp | Hci Management Node | All versions |
| Netapp | Solidfire | All versions |
| Netapp | Steelstore Cloud Integrated Storage | All versions |
| Oracle | Enterprise Manager Ops Center | 12.3.3 |
| Oracle | Enterprise Manager Ops Center | 12.4.0 |
| Oracle | Mysql Server | <= 5.7.27 |
| Oracle | Mysql Server | >= 5.7.28, <= 8.0.17 |
| Oracle | Oss Support Tools | 20.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00017.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/09/11/6Mailing List, Patch, Third Party Advisory
- https://curl.haxx.se/docs/CVE-2019-5436.htmlExploit, Patch, Vendor Advisory
- https://seclists.org/bugtraq/2020/Feb/36Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-29Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190606-0004/Third Party Advisory
- https://support.f5.com/csp/article/K55133295Third Party Advisory
- https://www.debian.org/security/2020/dsa-4633Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00017.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/09/11/6Mailing List, Patch, Third Party Advisory
- https://curl.haxx.se/docs/CVE-2019-5436.htmlExploit, Patch, Vendor Advisory
- https://seclists.org/bugtraq/2020/Feb/36Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-29Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190606-0004/Third Party Advisory
- https://support.f5.com/csp/article/K55133295Third Party Advisory
- https://www.debian.org/security/2020/dsa-4633Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2019-5436?
CVE-2019-5436 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 49.74% probability of exploitation in the next 30 days.
How do I fix CVE-2019-5436?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-5436?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
