CVE-2021-29473

    Dashboard / Vulnerabilities / CVE-2021-29473

    CVE-2021-29473

    Published: 26 Apr 2021Last Modified: 8 Jul 2026

    Summary:

    Details: Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. 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. Please see our security policy for information about Exiv2 security.

    References: https://github.com/Exiv2/exiv2/security/policy, https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWZLDECIXXW3CCZ3RS4A3NG5X5VE4WZM/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBKWLTXM7IKZ4PVGKLUQVAVFAYGGF7QR/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/, https://security.gentoo.org/glsa/202312-06, https://www.debian.org/security/2021/dsa-4958, https://github.com/Exiv2/exiv2/security/advisories/GHSA-7569-phvm-vwc2, https://github.com/github/advisory-review/pull/1587

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -15098f4ef50cc721ad0018218acab2ff06e60beb

    Affected versions

    v0.27.4-RC3
    v0.27.4-RC2
    v0.27.4-RC1
    v0.27.3
    v0.27.3-RC2
    v0.27.3-RC1
    v0.27.2
    v0.27.2-RC3
    v0.27.2-RC2
    v0.27.2-RC1
    v0.27.1
    v0.27.1-RC1
    v0.27.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-29473 | CVE-DB