CVE-2019-13115
8.1 · HIGHOverview
CVE-2019-13115 is a high-severity vulnerability affecting libssh2 libssh2. It was published on July 16, 2019 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
Remediation
Check the references section for vendor advisories and patches from libssh2. Update libssh2 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| libssh2 | libssh2 | >= 0, < 1.9.0 | Affected |
| netapp | e-series_santricity_os_controller | 11.0.0 | Affected |
| f5 | traffix_systems_signaling_delivery_controller | 5.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2019-13115?
CVE-2019-13115 is a high-severity vulnerability affecting libssh2 libssh2. It was published on July 16, 2019 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2019-13115?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-13115?
Check the references section for vendor advisories and patches from libssh2. Update libssh2 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-13115?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-13115 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2019
View all →An exploitable SQL injection vulnerability exist in YouPHPTube 7.7. When the "VideoTags" plugin is e
A file-upload vulnerability exists in Rukovoditel 2.3.1. index.php?module=configuration/save allows
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted inter
An error-based SQL injection vulnerability in product/card.php in Dolibarr version 8.0.2 allows remo
SQL injection vulnerability in user/card.php in Dolibarr version 8.0.2 allows remote authenticated u
SAP Enterprise Financial Services (fixed in SAPSCORE 1.13, 1.14, 1.15; S4CORE 1.01, 1.02, 1.03; EA-F
Under some circumstances, masterdata maintenance in SAP BW/4HANA (fixed in DW4CORE version 1.0 (SP08
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates
An elevation of privilege exists in Windows COM Desktop Broker, aka "Windows COM Elevation of Privil
An elevation of privilege vulnerability exists in Microsoft Edge Browser Broker COM object, aka "Mic
A remote code execution vulnerability exists in Microsoft Word software when it fails to properly ha
D-Link DIR-822 C1 before v3.11B01Beta, DIR-822-US C1 before v3.11B01Beta, DIR-850L A* before v1.21B0