Out-of-bounds read in OpenSC - CVE-2018-16427

Vulnerability identifier: #VU16739

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-16427

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to out-of-bounds read when handling responses. A remote unauthenticated attacker can supply specially crafted smartcards to crash the opensc library using programs.

OpenSC
opensc (Alpine package)
opensc
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Scientific Computing
Opensuse
Fedora

Update to version 0.19.0-rc1.

OpenSC - update to 0.19.0 rc1
opensc (Alpine package) - update to 0.19.0-r0
opensc - addressed in versions 0.19.0-1.fc28, 0.19.0-1.fc29

• https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1
• https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/

• Multiple vulnerabilities in opensc
• OpenSUSE Linux update for opensc
• Red Hat update for opensc
• OpenSUSE Linux update for opensc
• Out-of-bounds read in opensc (Alpine package)
• Fedora 29 update for opensc
• Fedora 28 update for opensc