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kamadak-exif vulnerable to Infinite loop when parsing PNG files

Moderate severity GitHub Reviewed Published Jan 5, 2021 in kamadak/exif-rs • Updated Feb 2, 2023

Package

cargo kamadak-exif (Rust)

Affected versions

= 0.5.2

Patched versions

0.5.3

Description

Impact

Reader::read_from_container can cause an infinite loop when a crafted PNG file is given.

Patches

Version 0.5.3 includes the fix.

Workarounds

No workaround is available.
Applications that do not pass files with the PNG signature to Reader::read_from_container are not affected.

References

For more information

If you have any questions or comments about this advisory:

References

@kamadak kamadak published to kamadak/exif-rs Jan 5, 2021
Published by the National Vulnerability Database Jan 6, 2021
Published to the GitHub Advisory Database Oct 6, 2022
Reviewed Oct 6, 2022
Last updated Feb 2, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS score

0.226%
(61st percentile)

Weaknesses

CVE ID

CVE-2021-21235

GHSA ID

GHSA-px9g-8hgv-jvg2

Source code

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