CVE-2022-34503

qpdf: a heap buffer overflow via the function QPDF::processXRefStream

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Severity

Low

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · July 22, 2022

Updated · November 22, 2025

Description

A heap buffer overflow vulnerability was discovered in qpdf via the QPDF::processXRefStream() function. This flaw allows an attacker to cause a denial of service (DoS) via a crafted PDF file.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.7
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer