Vulnerability identifier: #VU82176

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19450

CWE-ID: CWE-91

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ReportLab
Client/Desktop applications / Office applications

Vendor: ReportLab, Inc.

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation when processing XML data within the start_unichar() function in paraparser.py. A remote unauthenticated attacker can pass specially crafted XML data to the application and perform arbitrary actions on the system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ReportLab: 3.5.1 - 3.5.30

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External links
http://github.com/MrBitBucket/reportlab-mirror/blob/master/CHANGES.md
http://pastebin.com/5MicRrr4
http://lists.debian.org/debian-lts-announce/2023/09/msg00037.html

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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.