#VU51606 Infinite loop in PDFBox


Published: 2021-03-22

Vulnerability identifier: #VU51606

Vulnerability 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-2021-27807

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

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

Vendor: Apache Foundation

Description

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

The vulnerability exists due to infinite loop when processing PDF files. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PDFBox: 2.0 - 2.0.22


External links
http://www.openwall.com/lists/oss-security/2021/03/19/9
http://lists.apache.org/thread.html/r043edc5dcf9199f7f882ed7906b41cb816753766e88b8792dbf319a9@%3Cannounce.apache.org%3E
http://lists.apache.org/thread.html/r1d268642f8b52456ee8f876b888b8ed7a9e9568c7770789f3ded7f9e@%3Ccommits.ofbiz.apache.org%3E
http://lists.apache.org/thread.html/r4717f902f8bc36d47b3fa978552a25e4ed3ddc2fffb52b94fbc4ab36@%3Cusers.pdfbox.apache.org%3E
http://lists.apache.org/thread.html/r5c8e2125d18af184c80f7a986fbe47eaf0d30457cd450133adc235ac@%3Ccommits.ofbiz.apache.org%3E
http://lists.apache.org/thread.html/r7ee634c21816c69ce829d0c41f35afa2a53a99bdd3c7cce8644fdc0e@%3Cnotifications.ofbiz.apache.org%3E
http://lists.apache.org/thread.html/r818058ff1e4b9f6bef4e5a2e74faff38cb3d3885c1e2db398bc55cfb%40%3Cusers.pdfbox.apache.org%3E
http://lists.apache.org/thread.html/r818058ff1e4b9f6bef4e5a2e74faff38cb3d3885c1e2db398bc55cfb@%3Cusers.pdfbox.apache.org%3E
http://lists.apache.org/thread.html/r9ffe179385637b0b5cbdabd0246118005b4b8232909d2d14cd68ccd3@%3Ccommits.ofbiz.apache.org%3E
http://lists.apache.org/thread.html/raa35746227f3f8d50fff1db9899524423a718f6f35cd39bd4769fa6c@%3Cnotifications.ofbiz.apache.org%3E
http://lists.apache.org/thread.html/rc69140d894c6a9c67a8097a25656cce59b46a5620c354ceba10543c3@%3Cnotifications.ofbiz.apache.org%3E
http://lists.apache.org/thread.html/re1e35881482e07dc2be6058d9b44483457f36133cac67956686ad9b9@%3Cnotifications.ofbiz.apache.org%3E


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.


Latest bulletins with this vulnerability