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OpenAdvisories
Low · 3.6 CVE-2021-29623 EUVD-2021-16101

Uninitialized variable bug in Exiv2

Published May 13, 2021 · Updated Aug 3, 2024 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
Exiv2 exiv2 < v0.27.4 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 exiv2 0.27.5-1 —
Debian 13 exiv2 0.27.5-1 —
Debian 12 exiv2 0.27.5-1 —
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS exiv2 0.27.2-8ubuntu2.4 USN-4964-1
Ubuntu 18.04 LTS exiv2 0.25-3.1ubuntu0.18.04.9 USN-4964-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 16.04 LTS exiv2 0.25-2.1ubuntu16.04.7+esm2 USN-4964-1
ReleasePackageFixed inAdvisory
RHEL 8 exiv2 +3 0.27.4-5.el8 RHSA-2021:4173

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 exiv2 +3 0.27.4-5.el8 ALSA-2021:4173

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 exiv2 0.27.4-5.el8 RLSA-2021:4173
ReleasePackageFixed inAdvisory
SLES 15 SP4 exiv2 0.27.5-150400.15.4.1 SUSE-SU-2022:3889-1
SLES 15 SP4 exiv2-0_26 0.26-150400.9.16.1 SUSE-SU-2022:3889-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed exiv2 0.27.5-2.1 openSUSE-SU-2024:12063-1
openSUSE Leap 15.4 exiv2 0.27.5-150400.15.4.1 SUSE-SU-2022:3889-1
openSUSE Leap 15.4 exiv2-0_26 0.26-150400.9.16.1 SUSE-SU-2022:3889-1
ReleasePackageFixed inAdvisory
Alpine v3.24 exiv2 0.27.3-r2 —
Alpine v3.23 exiv2 0.27.3-r2 —
Alpine v3.22 exiv2 0.27.3-r2 —
Alpine v3.21 exiv2 0.27.3-r2 —
Alpine v3.20 exiv2 0.27.3-r2 —
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Alpine v3.19 exiv2 0.27.3-r2 —
Alpine v3.18 exiv2 0.27.3-r2 —
Alpine v3.17 exiv2 0.27.3-r2 —
Alpine v3.16 exiv2 0.27.3-r2 —
Alpine v3.15 exiv2 0.27.3-r2 —
Alpine v3.14 exiv2 0.27.3-r2 —
Alpine v3.13 exiv2 0.27.3-r2 —

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) exiv2 0.27.5-1 —

Advisories 7

References