Multiple vulnerabilities in uriparser library

Published: 2022-01-27

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-46142 CVE-2021-46141
CWE-ID	CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	uriparser Universal components / Libraries / Libraries used by multiple products
Vendor	uriparser

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU60086

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-46142

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a use-after-free error when parsing URI in uriNormalizeSyntax in uriparser. A remote attacker can trick the victim to open a specially crafted URI, trigger a use-after-free error and crash the application that us using the affected library.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

uriparser: 0.9.0 - 0.9.5

External links

http://github.com/uriparser/uriparser/issues/122
http://github.com/uriparser/uriparser/pull/124
http://blog.hartwork.org/posts/uriparser-096-with-security-fixes-released/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO6T7WA27H7K3WI2AXUAGPWBGK4HM65D/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YGIJTDNEMU2V4H3JJBQVKBRHU5GBQKG2/
http://www.debian.org/security/2022/dsa-5063

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Use-after-free

EUVDB-ID: #VU60085