CVE-2021-29458

Out-of-bounds read in Exiv2::Internal::CrwMap::encode

Published Apr 19, 2021 CVSS 3.1 · 5.5 Medium EPSS 1.6% KEV · Not listed
Description
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-3265-1 exiv2 security update
Ubuntu USN Ubuntu USN USN-4941-1 Exiv2 vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 3, 2024, 10:02 PM
Reserved
Mar 30, 2021, 12:00 AM
Status
Modified
Published
Apr 19, 2021, 7:15 PM
Modified
Jun 17, 2026, 3:47 AM
Severity
Moderate
Public date
Apr 18, 2021, 12:00 AM