CVE-2020-18899

exiv2: uncontrolled memory allocation in DataBufdata may lead to DoS

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · August 19, 2021

Updated · November 21, 2025

Description

An uncontrolled memory allocation in DataBufdata(subBox.length-sizeof(box)) function of Exiv2 0.27 allows attackers to cause a denial of service (DOS) via a crafted input.

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 · 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling