--- title: "CVE-2021-37620\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2021-37620?format=md keywords: index, follow --- # CVE-2021-37620 Publication date 9 August 2021 Last updated 25 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **5.5 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2021-37620?format=md#impact-score) Toggle side navigation ## Description 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 v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read 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. The bug is fixed in version v0.27.5. [Read the notes from the security team](https://ubuntu.com/security/CVE-2021-37620?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | exiv2 | 22.04 LTS jammy | Fixed 0.27.3-3ubuntu4 | | 21.10 impish | Fixed 0.27.3-3ubuntu4.1 | | 21.04 hirsute | Fixed 0.27.3-3ubuntu1.6 | | 20.04 LTS focal | Fixed 0.27.2-8ubuntu2.7 | | 18.04 LTS bionic | Fixed 0.25-3.1ubuntu0.18.04.11 | | 16.04 LTS xenial | Fixed 0.25-2.1ubuntu16.04.7+esm4 Ubuntu Pro | | 14.04 LTS trusty | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2021-37620?format=md#patch-details) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ## Notes --- ### [leosilva](https://launchpad.net/~leosilva) a regression was reported in (LP: #1941752) and fixed in USN-5043-2. It only affected focal, hirsute, impish and jammy. ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | exiv2 | * Upstream: * Upstream: * Upstream: | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 5.5 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Local | | Attack complexity | Low | | Privileges required | None | | User interaction | Required | | Scope | Unchanged | | Confidentiality impact | None | | Integrity impact | None | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 5.5 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37620) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2021-37620) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2021-37620) * [Debian](https://security-tracker.debian.org/tracker/CVE-2021-37620) ### Related Ubuntu Security Notices (USN) + [USN-5043-1](https://usn.ubuntu.com/USN-5043-1) + Exiv2 vulnerabilities + 17 August 2021 + [USN-5043-2](https://usn.ubuntu.com/USN-5043-2) + Exiv2 regression + 11 January 2022 ### Other references * * *