Resource Exhaustion Affecting dbus-libs package, versions <1:1.10.24-14.el7_8


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS7-DBUSLIBS-2166256
  • published26 Jul 2021
  • disclosed4 Jun 2020

Introduced: 4 Jun 2020

CVE-2020-12049  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Centos:7 dbus-libs to version 1:1.10.24-14.el7_8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dbus-libs package and not the dbus-libs package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.

CVSS Scores

version 3.1