CVE-2021-29457

exiv2: Heap-based buffer overflow in Exiv2::Jp2Image::doWriteMetadata

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Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · April 18, 2021

Updated · June 27, 2026

Description

There's a flaw in exiv2. An attacker who is able to supply a crafted file to an application linked against exiv2 could trigger an out-of-bounds write in heap memory. The highest risk of this flaw is to application confidentiality, integrity, and availability.

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 · 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-787 · Out-of-bounds Write