CVE-2021-37620: debian debian_linux Out-of-bounds Read
Vulnerability summary
CVE-2021-37620 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 1.05% chance of exploitation in the next 30 days, higher than 63.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 7 · Related 5Timeline
- 09-08-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- CVE.orgCNA4.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.05%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
0.00 pp
From 1.05% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- exiv2< 0.27.5-1
- debian_linuxEOL10.0
Exiv21 product
- exiv2≤ 0.27.4 | < 0.27.5
Fedoraproject1 product
- fedoraEOL33 | 34
Ubuntu1 product
- exiv2< 0.27.2-8ubuntu2.7 | < 0.25-2.1ubuntu16.04.7+esm4 | < 0.25-3.1ubuntu0.18.04.11 | < 0.27.3-3ubuntu4
4 vendors · 5 products
References
13 links- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- security.gentoo.org/glsa/202312-06Vendor Advisory
