CVE-2021-27815 Information

Description

NULL Pointer Deference in the exif command line tool when printing out XML formatted EXIF data in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file causing the application to crash.

CVSS Vector

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

Reference

https://github.com/libexif/exif/issues/4 https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSWAXZVNXYLV3E4R6YQTEGRGMGWEAR76/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZQ3L45F7S7PQPG5HEHXOCGNOO64MJOS/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QMC6OTXZRPCUD3LOSWO4ISR7CH7NJQDT/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5