Denial of service in Apache Tika

1) Incorrect Regular Expression

EUVDB-ID: #VU64724

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-33879

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack.

The vulnerability exists due to improper validation in the StandardsExtractingContentHandler. A remote attacker can pass specially crafted file to the application and perform a denial of service (DoS) attack.

The vulnerability exists due to incomplete fixes for #VU63404 (CVE-2022-30126) and #VU63904 (CVE-2022-30973).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Tika: 1.0 - 2.4.0

External links

http://seclists.org/oss-sec/2022/q2/213

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.