Out-of-bounds read in Exiv2 - CVE-2021-29470

Vulnerability identifier: #VU84712

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-2021-29470

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 in Exiv2::Jp2Image::encodeJp2Header(). A remote attacker can pass specially crafted file to the application and perform a denial of service (DoS) attack.

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
exiv2-devel
exiv2-debuginfo
exiv2-debugsource
exiv2-help
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 0.25-3.1ubuntu0.18.04.7, 0.25-3.1ubuntu0.18.04.11
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
libexiv2-27 (Ubuntu package) - addressed in versions 0.27.2-8ubuntu2.2, 0.27.3-3ubuntu0.2, 0.27.3-3ubuntu1.1
mingw-exiv2 - addressed in versions 0.27.3-5.fc33, 0.27.3-5.fc34
exiv2 - addressed in versions 0.27.3-6.fc33, 0.27.3-6.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/security/advisories/GHSA-8949-hhfh-j7rj
• https://github.com/Exiv2/exiv2/pull/1581
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWZLDECIXXW3CCZ3RS4A3NG5X5VE4WZM/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LBKWLTXM7IKZ4PVGKLUQVAVFAYGGF7QR/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/

• 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
• Ubuntu update for exiv2
• Arch Linux update for exiv2
• Fedora 34 update for exiv2
• Fedora 33 update for exiv2
• Fedora 34 update for mingw-exiv2
• Fedora 33 update for mingw-exiv2
• Anolis OS update for exiv2