Uncontrolled Recursion in Exiv2 - CVE-2020-18898

Vulnerability identifier: #VU106252

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-2020-18898

CWE-ID: CWE-674

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 infinite recursion within the Exiv2::Image::printIFDStructure() function in image.cpp. A remote attacker can consume all available system resources and cause denial of service conditions.

Exiv2
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
compat-exiv2-026
compat-exiv2-026 (Red Hat package)
exiv2
exiv2-libs
exiv2 (Red Hat package)

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

compat-exiv2-026 - update to 0.26-7
compat-exiv2-026 (Red Hat package) - update to 0.26-7.el8
exiv2 - update to 0.27.5-2
exiv2-libs - update to 0.27.5-2
exiv2 (Red Hat package) - update to 0.27.5-2.el8

• https://github.com/Exiv2/exiv2/issues/741

• Denial of service in Exiv2
• Anolis OS update for compat-exiv2-026
• Anolis OS update for exiv2
• Red Hat Enterprise Linux 8 update for exiv2
• Red Hat Enterprise Linux 8 update for compat-exiv2-026