Information disclosure in Exiv2 - CVE-2021-29623

Vulnerability identifier: #VU53298

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-29623

CWE-ID: CWE-200

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a read of uninitialized memory flaw. A remote attacker can trick a victim to open a specially crafted image file and gain unauthorized access to sensitive information on the system.

Exiv2
Gentoo Linux
Arch Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for IBM z Systems
Anolis OS
Ubuntu
openEuler
Fedora
libexiv2-14 (Ubuntu package)
exiv2 (Ubuntu package)
exiv2
exiv2-devel
exiv2-debuginfo
exiv2-debugsource
exiv2-help
libexiv2-27 (Ubuntu package)
mingw-exiv2
exiv2 (Red Hat package)
exiv2-libs
media-gfx/exiv2

Install updates from vendor's website.

Exiv2 - update to 0.27.4
libexiv2-14 (Ubuntu package) - addressed in versions 0.25-3.1ubuntu0.18.04.9, 0.25-3.1ubuntu0.18.04.11
exiv2 (Ubuntu package) - addressed in versions 0.25-3.1ubuntu0.18.04.9, 0.27.2-8ubuntu2.4, 0.27.2-8ubuntu2.7, 0.27.3-3ubuntu0.4, 0.27.3-3ubuntu1.3
exiv2 - update to 0.26-27
exiv2-devel - update to 0.26-27
exiv2-debuginfo - update to 0.26-27
exiv2-debugsource - update to 0.26-27
exiv2-help - update to 0.26-27
libexiv2-27 (Ubuntu package) - addressed in versions 0.27.2-8ubuntu2.4, 0.27.3-3ubuntu0.4, 0.27.3-3ubuntu1.3
mingw-exiv2 - addressed in versions 0.27.3-6.fc33, 0.27.3-6.fc34
exiv2 - addressed in versions 0.27.3-7.fc33, 0.27.3-7.fc34
exiv2 (Red Hat package) - update to 0.27.4-5.el8
exiv2 - update to 0.27.5-2
exiv2-libs - update to 0.27.5-2
media-gfx/exiv2 - update to 0.28.1

• https://github.com/Exiv2/exiv2/pull/1627
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-6253-qjwm-3q4v

• Multiple vulnerabilities in Exiv2
• Gentoo update for Exiv2
• openEuler 20.03 LTS SP1 update for exiv2
• Red Hat Enterprise Linux 8 update for exiv2
• Ubuntu update for exiv2
• Arch Linux update for exiv2
• Fedora 34 update for exiv2
• Fedora 33 update for exiv2
• Fedora 33 update for mingw-exiv2
• Fedora 34 update for mingw-exiv2
• Anolis OS update for exiv2