CVE-2021-32617
exiv2: DoS due to quadratic complexity in ProcessUTF8Portion
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 16, 2021
Updated · November 22, 2025
Description
There's a flaw in the xmpsdk component shipped with exiv2. An attacker who is able to submit a crafted file to be processed by an application linked with the exiv2 library could cause an excessive consumption of resources, potentially leading to denial of service. The greatest impact of this flaw is to system availability.
Statement
Red Hat Product Security has marked the Impact of this flaw as Low because the denial of service caused by this flaw would not necessarily be persistent. Additionally, exploitation relies on parsing of arbitrary image files from untrusted sources, and the operation/command used to trigger it is not common amongst users according to the upstream advisory listed under "References" below.
This flaw is out of support scope for Red Hat Enterprise Linux 6 and 7. To learn more about Red Hat Enterprise Linux support scopes, please see https://access.redhat.com/support/policy/updates/errata
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 · 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 · Uncontrolled Resource Consumption