Denial of service in Apache Tika

1) Incorrect Regular Expression

EUVDB-ID: #VU64724

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

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

CPE2.3

• cpe:2.3:a:apache_foundation:tika:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.2:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.3:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.4:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.5:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.6:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.7:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.8:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:tika:1.9:*:*:*:*:*:*:*

External links

https://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.