5.5

CVE-2021-32617: exiv2 Uncontrolled Resource Consumption

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-32617DEBIAN-CVE-2021-32617
Published 17-05-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-32617 is a medium (CVSS 5.5) Uncontrolled Resource Consumption vulnerability in exiv2. EPSS estimates a 1.17% chance of exploitation in the next 30 days, higher than 67% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 5
MGASA-2021-0240OPENSUSE-SU-2024:12381-1RHSA-2021:4173SUSE-SU-2022:3543-1SUSE-SU-2022:3598-1SUSE-SU-2022:3889-1

Timeline

  1. 17-05-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last 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 inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and earlier. The inefficient algorithm 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, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4. 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 `rm`.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.17%

Chance of exploitation in the next 30 days

Percentile

67%

Versus all other CVEs

30-day change

0.00 pp

From 1.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • exiv2< 0.27.5-1
Exiv21 product
  • exiv2≤ 0.27.3 | < 0.27.4
Fedoraproject1 product
Ubuntu1 product
  • exiv2< 0.25-2.1ubuntu16.04.7+esm2 | < 0.25-3.1ubuntu0.18.04.9 | < 0.27.2-8ubuntu2.4

4 vendors · 4 products

References

12 links
Show all 12 references