Use-after-free in cURL - CVE-2016-5421

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Main Vulnerability Database Vulnerabilities #VU32262

Use-after-free in cURL - CVE-2016-5421

Published: August 10, 2016 / Updated: July 28, 2020


Vulnerability identifier: #VU32262
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-5421
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing unknown vectors. A attackers can control which connection is used or possibly have unspecified other impact.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Affected software

cURL
Amazon Linux AMI
Slackware Linux
Fedora
curl (Alpine package)
curl
QLogic Virtual Fabric Extension Module for IBM BladeCenter
Flex System FC3171 8Gb SAN Switch

How to mitigate CVE-2016-5421

Update to version 7.50.1.

cURL - update to 7.50.1
curl (Alpine package) - addressed in versions 7.49.1-r1, 7.50.1-r0
curl - addressed in versions 7.43.0-8.fc23, 7.47.1-6.fc24
QLogic Virtual Fabric Extension Module for IBM BladeCenter - update to 9.0.3.19.00
Flex System FC3171 8Gb SAN Switch - update to 9.1.9.02.00

External References

Related Security Bulletins