4.3

CVE-2021-29623: exiv2 Use of Uninitialized Resource

CVSS: 4.3v2.0MediumModified
AliasesUBUNTU-CVE-2021-29623DEBIAN-CVE-2021-29623openSUSE-SU-2024:12063-1
Published 13-05-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-29623 is a medium (CVSS 4.3) Use of Uninitialized Resource vulnerability in exiv2. EPSS estimates a 1.10% chance of exploitation in the next 30 days, higher than 65.2% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
1.10%
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 4 · Related 2
MGASA-2021-0240RHSA-2021:4173SUSE-SU-2022:3889-1USN-4964-1

Timeline

  1. 13-05-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory 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 read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.10%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

0.00 pp

From 1.10% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.10%

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< v0.27.4 | < 0.27.4
Fedoraproject1 product
Opensuse1 product
  • exiv2&distro=openSUSE Tumbleweed< 0.27.5-2.1
Ubuntu1 product
  • exiv2< 0.27.2-8ubuntu2.4

5 vendors · 5 products

References

13 links
Show all 13 references