Format string error in udisks - CVE-2018-17336

Vulnerability identifier: #VU85887

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-17336

CWE-ID: CWE-134

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a format string error in udisks_log in udiskslogging.c. A local user can supply a specially crafted input that contains format string specifiers to obtain sensitive information (stack contents), cause a denial of service (memory corruption), or possibly have unspecified other impact via a malformed filesystem label.

udisks
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Fedora
IBM Security Guardium
udisks2 (Red Hat package)
udisks2

Install updates from vendor's website.

udisks2 (Red Hat package) - update to 2.7.3-9.el7
udisks2 - addressed in versions 2.7.6-2.fc27, 2.7.6-2.fc28, 2.8.1-1.fc29

• https://access.redhat.com/errata/RHSA-2019:2178
• https://github.com/storaged-project/udisks/issues/578
• https://usn.ubuntu.com/3772-1/

• Multiple vulnerabilities in IBM Security Guardium
• Fedora 27 update for udisks2
• Fedora 28 update for udisks2
• Fedora 29 update for udisks2
• Red Hat Enterprise Linux 7 update for udisks2