Out-of-bounds read in Exiv2 - CVE-2021-29463

Vulnerability identifier: #VU84710

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-29463

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within Exiv2::WebPImage::doWriteMetadata(). A remote attacker can pass a specially crafted file to the application and perform a denial of service attack.

Exiv2
Arch Linux
Gentoo Linux
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Storage
Anolis OS
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
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Performance Computing
openSUSE Leap
Ubuntu
openEuler
Fedora
libexiv2-14 (Ubuntu package)
exiv2 (Ubuntu package)
exiv2
exiv2-devel
exiv2-debuginfo
exiv2-debugsource
exiv2-help
libexiv2-26-32bit-debuginfo
exiv2-lang
libexiv2-26-32bit
libexiv2-doc
libexiv2-26-debuginfo
libexiv2-26
libexiv2-devel
libexiv2-27 (Ubuntu package)
mingw-exiv2
exiv2 (Red Hat package)
exiv2-libs
media-gfx/exiv2

Install update 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 0.26-25
exiv2-devel - update to 0.26-25
exiv2-debuginfo - update to 0.26-25
exiv2-debugsource - update to 0.26-25
exiv2-help - update to 0.26-25
libexiv2-26-32bit-debuginfo - update to 0.26-150000.6.21.1
exiv2-lang - update to 0.26-150000.6.21.1
libexiv2-26-32bit - update to 0.26-150000.6.21.1
libexiv2-doc - update to 0.26-150000.6.21.1
libexiv2-26-debuginfo - update to 0.26-150000.6.21.1
libexiv2-26 - update to 0.26-150000.6.21.1
exiv2 - update to 0.26-150000.6.21.1
exiv2-debugsource - update to 0.26-150000.6.21.1
libexiv2-devel - update to 0.26-150000.6.21.1
exiv2-debuginfo - update to 0.26-150000.6.21.1
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 0.27.4-2.fc33, 0.27.4-2.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/commit/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4b
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrr
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/

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