Integer overflow in cURL - CVE-2019-5435

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Main Vulnerability Database Vulnerabilities #VU18583

Integer overflow in cURL - CVE-2019-5435

Published: May 23, 2019


Vulnerability identifier: #VU18583
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-5435
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in curl_url_set() function on 32-bit systems. A remote attacker can pass an overly long URL to the affected application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

cURL
Dell Data Protection Central
Dell EMC PowerProtect Data Protection
Amazon Linux AMI
Arch Linux
Gentoo Linux
Slackware Linux
Fedora
curl (Ubuntu package)
curl (Alpine package)
curl

How to mitigate CVE-2019-5435

Install updates from vendor's website.

cURL - update to 7.65.0
curl (Ubuntu package) - addressed in versions 7.47.0-1ubuntu2.13, 7.58.0-2ubuntu3.7, 7.61.0-1ubuntu2.4, 7.64.0-2ubuntu1.1
curl (Alpine package) - update to 7.64.0-r2
curl - addressed in versions 7.61.1-11.fc29, 7.64.0-7.fc30

External References

Related Security Bulletins