PT-2021-17628 · Exif+1 · Exif+1

Nigelxo · Published 2021-04-14 · Updated 2022-11-04 · CVE-2021-27815

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: exif versions 0.6.22 and earlier

Description: The issue allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash. This occurs when printing out XML formatted EXIF data using the exif command line tool.

Recommendations: For exif versions 0.6.22 and earlier, consider updating to a version later than 0.6.22 to resolve the issue. As a temporary workaround, restrict the upload of JPEG files from untrusted sources to minimize the risk of exploitation.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-27815

MGASA-2021-0252

Affected Products

Debian

Exif

References · 22

• 🔥 https://github.com/libexif/exif/issues/4 · Exploit
• https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c · Patch
• https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa · Patch
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/QMC6OTXZRPCUD3LOSWO4ISR7CH7NJQDT · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-27815 · Security Note
• https://ubuntu.com/security/CVE-2021-27815 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-27815 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0252.html · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-27815 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2021-0252 · Vendor Advisory
• https://security.gentoo.org/glsa/202210-28 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSWAXZVNXYLV3E4R6YQTEGRGMGWEAR76 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QMC6OTXZRPCUD3LOSWO4ISR7CH7NJQDT · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-27815 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-27815 · Vendor Advisory