#VU15910 Out-of-bounds write in uriparser - CVE-2018-19198

Vulnerability identifier: #VU15910

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-19198

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
uriparser
Universal components / Libraries / Libraries used by multiple products

Vendor: uriparser

Description

The vulnerability allows a local attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists due to out-of-bounds write in the uriComposeQuery* and uriComposeQueryEx* functions, as defined in the UriQuery.csource code file. A local attacker can send a specially request that submits malicious input, trigger memory corruption to cause a DoS condition or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 0.9.

Vulnerable software versions

uriparser: 0.3 - 0.8.6

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External links
https://github.com/uriparser/uriparser/commit/864f5d4c127def386dd5cc926ad96934b297f04e

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.