UBUNTU-CVE-2021-37623

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    UBUNTU-CVE-2021-37623

    Published: 9 Aug 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-37623
    Aliases:
    USN-5043-1

    Summary:

    Details: Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop was found in Exiv2 versions v0.27.4 and earlier. The infinite loop is triggered when Exiv2 is used to modify the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when deleting the IPTC data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-d I rm`). The bug is fixed in version v0.27.5.

    References: https://ubuntu.com/security/CVE-2021-37623, https://github.com/Exiv2/exiv2/security/advisories/GHSA-mvc4-g5pv-4qqq, https://github.com/Exiv2/exiv2/pull/1790, https://ubuntu.com/security/notices/USN-5043-1, https://www.cve.org/CVERecord?id=CVE-2021-37623

    Affected packages

    Package

    Name: exiv2

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.27.2-8ubuntu2.6

    Affected versions

    0.25-4ubuntu2

    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
    UBUNTU-CVE-2021-37623 | CVE-DB