openEuler 20.03 LTS SP1 update for pdfbox

Published: 2021-05-06

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-27807 CVE-2021-27906
CWE-ID	CWE-835 CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	openEuler Operating systems & Components / Operating system pdfbox-tools Operating systems & Components / Operating system package or component pdfbox-parent Operating systems & Components / Operating system package or component pdfbox-reactor Operating systems & Components / Operating system package or component pdfbox-debugger Operating systems & Components / Operating system package or component pdfbox-javadoc Operating systems & Components / Operating system package or component preflight Operating systems & Components / Operating system package or component fontbox Operating systems & Components / Operating system package or component xmpbox Operating systems & Components / Operating system package or component pdfbox Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU51606

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-2021-27807

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

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 repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

pdfbox-tools: before 2.0.23-1

pdfbox-parent: before 2.0.23-1

pdfbox-reactor: before 2.0.23-1

pdfbox-debugger: before 2.0.23-1

pdfbox-javadoc: before 2.0.23-1

preflight: before 2.0.23-1

fontbox: before 2.0.23-1

xmpbox: before 2.0.23-1

pdfbox: before 2.0.23-1

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1160

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) Resource exhaustion

EUVDB-ID: #VU51605