curl/libcURL CVE-2019-5482 Heap Buffer Overflow Vulnerability

Description

curl/libcURL is prone a heap-based buffer-overflow vulnerability. An attacker can exploit this issue to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely result in denial-of-service conditions. libcurl versions 7.19.4 through 7.65.3 are vulnerable.

Technologies Affected

• Haxx Curl 7.19.4
• Haxx Curl 7.19.5
• Haxx Curl 7.19.6
• Haxx Curl 7.19.7
• Haxx Curl 7.20.0
• Haxx Curl 7.21.0
• Haxx Curl 7.21.1
• Haxx Curl 7.21.2
• Haxx Curl 7.21.3
• Haxx Curl 7.21.4
• Haxx Curl 7.21.5
• Haxx Curl 7.21.6
• Haxx Curl 7.21.7
• Haxx Curl 7.22.0
• Haxx Curl 7.23.0
• Haxx Curl 7.23.1
• Haxx Curl 7.24.0
• Haxx Curl 7.25.0
• Haxx Curl 7.26.0
• Haxx Curl 7.27.0
• Haxx Curl 7.28.0
• Haxx Curl 7.28.1
• Haxx Curl 7.29.0
• Haxx Curl 7.30.0
• Haxx Curl 7.31.0
• Haxx Curl 7.32.0
• Haxx Curl 7.33.0
• Haxx Curl 7.34.0
• Haxx Curl 7.35.0
• Haxx Curl 7.36.0
• Haxx Curl 7.37.1
• Haxx Curl 7.38.0
• Haxx Curl 7.39.0
• Haxx Curl 7.40.0
• Haxx Curl 7.41.0
• Haxx Curl 7.42.0
• Haxx Curl 7.42.1
• Haxx Curl 7.43.0
• Haxx Curl 7.45.0
• Haxx Curl 7.46.0
• Haxx Curl 7.47.0
• Haxx Curl 7.48.0
• Haxx Curl 7.49.0
• Haxx Curl 7.50.0
• Haxx Curl 7.50.1
• Haxx Curl 7.50.3
• Haxx Curl 7.51.0
• Haxx Curl 7.52.0
• Haxx Curl 7.52.1
• Haxx Curl 7.53.0
• Haxx Curl 7.53.1
• Haxx Curl 7.54.0
• Haxx Curl 7.54.1
• Haxx Curl 7.55.0
• Haxx Curl 7.55.1
• Haxx Curl 7.56.0
• Haxx Curl 7.56.1
• Haxx Curl 7.57.0
• Haxx Curl 7.58.0
• Haxx Curl 7.59.0
• Haxx Curl 7.60.0
• Haxx Curl 7.61.0
• Haxx Curl 7.61.1
• Haxx Curl 7.62.0
• Haxx Curl 7.63.0
• Haxx Curl 7.64.0
• Haxx Curl 7.65.3
• Haxx Libcurl 7.19.4
• Haxx Libcurl 7.19.5
• Haxx Libcurl 7.19.6
• Haxx Libcurl 7.19.7
• Haxx Libcurl 7.20.0
• Haxx Libcurl 7.20.1
• Haxx Libcurl 7.21.0
• Haxx Libcurl 7.21.1
• Haxx Libcurl 7.21.2
• Haxx Libcurl 7.21.3
• Haxx Libcurl 7.21.4
• Haxx Libcurl 7.21.5
• Haxx Libcurl 7.21.6
• Haxx Libcurl 7.21.7
• Haxx Libcurl 7.22.0
• Haxx Libcurl 7.23.0
• Haxx Libcurl 7.23.1
• Haxx Libcurl 7.24.0
• Haxx Libcurl 7.25.0
• Haxx Libcurl 7.26.0
• Haxx Libcurl 7.27.0
• Haxx Libcurl 7.28.0
• Haxx Libcurl 7.28.1
• Haxx Libcurl 7.29.0
• Haxx Libcurl 7.30.0
• Haxx Libcurl 7.31.0
• Haxx Libcurl 7.32.0
• Haxx Libcurl 7.33.0
• Haxx Libcurl 7.34.0
• Haxx Libcurl 7.35.0
• Haxx Libcurl 7.36.0
• Haxx Libcurl 7.37.0
• Haxx Libcurl 7.37.1
• Haxx Libcurl 7.38.0
• Haxx Libcurl 7.39
• Haxx Libcurl 7.40.0
• Haxx Libcurl 7.41.0
• Haxx Libcurl 7.42.0
• Haxx Libcurl 7.42.1
• Haxx Libcurl 7.43.0
• Haxx Libcurl 7.46.0
• Haxx Libcurl 7.47.0
• Haxx Libcurl 7.48.0
• Haxx Libcurl 7.49.0
• Haxx Libcurl 7.50.0
• Haxx Libcurl 7.50.1
• Haxx Libcurl 7.50.2
• Haxx Libcurl 7.50.3
• Haxx Libcurl 7.51.0
• Haxx Libcurl 7.52.0
• Haxx Libcurl 7.52.1
• Haxx Libcurl 7.53.0
• Haxx Libcurl 7.53.1
• Haxx Libcurl 7.54.0
• Haxx Libcurl 7.54.1
• Haxx Libcurl 7.55.0
• Haxx Libcurl 7.55.1
• Haxx Libcurl 7.56.0
• Haxx Libcurl 7.56.1
• Haxx Libcurl 7.57.0
• Haxx Libcurl 7.58.0
• Haxx Libcurl 7.59.0
• Haxx Libcurl 7.60.0
• Haxx Libcurl 7.61.0
• Haxx Libcurl 7.61.1
• Haxx Libcurl 7.62.0
• Haxx Libcurl 7.63.0
• Haxx Libcurl 7.64.0
• Haxx Libcurl 7.64.1
• Haxx Libcurl 7.65.3
• Oracle Enterprise Manager Ops Center 12.3.3
• Oracle Enterprise Manager Ops Center 12.4.0
• Ubuntu Ubuntu Linux 16.04 LTS
• Ubuntu Ubuntu Linux 18.04 LTS
• Ubuntu Ubuntu Linux 19.04

Recommendations

Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn’t needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity including unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Modify default ACL settings.
Implement database access control to limit the immediate impact of such vulnerabilities on the data and possibly the database itself. Ensure that applications are isolated from one another and from sensitive data through separate user accounts and restrictive ACL configurations

Run all software as a nonprivileged user with minimal access rights.
To limit the impact of latent vulnerabilities, configure servers and other applications to run as a nonadministrative user with minimal access rights.

Updates are available. Please see the references or vendor advisory for more information.