#VU18109 Use-after-free


Published: 2019-04-02 | Updated: 2019-06-13

Vulnerability identifier: #VU18109

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2019-0196

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache HTTP Server
Server applications / Web servers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform denial of service attack.

The vulnerability exists due to a use-after-free error within the mod_http2 module when processing HTTP/2 requests. A remote attacker can make the application to access freed memory during string comparison when determining the method of a request and process the request incorrectly.

Successful exploitation of the vulnerability may allow an attacker to gain access to sensitive information or perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache HTTP Server: 2.4.17 - 2.4.38


CPE

External links
http://www.apache.org/dist/httpd/CHANGES_2.4


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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