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CVE-2021-29470

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202312-06
Posted Dec 22, 2023
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202312-6 - Multiple vulnerabilities have been discovered in Exiv2, the worst of which can lead to remote code execution. Versions greater than or equal to 0.28.1 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2020-18771, CVE-2020-18773, CVE-2020-18774, CVE-2020-18899, CVE-2021-29457, CVE-2021-29458, CVE-2021-29463, CVE-2021-29464, CVE-2021-29470, CVE-2021-29473, CVE-2021-29623, CVE-2021-31291, CVE-2021-31292, CVE-2021-32617
SHA-256 | f888940d72449dc879a248db24d5ec9cdaffc0d3c26b45ab9d9b623f5c707e27
Red Hat Security Advisory 2021-4173-03
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4173-03 - Exiv2 is a C++ library to access image metadata, supporting read and write access to the Exif, IPTC and XMP metadata, Exif MakerNote support, extract and delete methods for Exif thumbnails, classes to access Ifd, and support for various image formats. Issues addressed include buffer overflow, denial of service, information leakage, integer overflow, and out of bounds read vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2021-29457, CVE-2021-29458, CVE-2021-29463, CVE-2021-29464, CVE-2021-29470, CVE-2021-29473, CVE-2021-29623, CVE-2021-31292, CVE-2021-32617, CVE-2021-3482, CVE-2021-37618, CVE-2021-37619
SHA-256 | 6bc18f1b04334341fa83bb4d00bcafc004b61ba7ac6f0f48c6a2df33a8c4fdce
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