Use After Free Affecting dbus-libs package, versions *



    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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7.8 high
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7 high
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Red Hat
7 high

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  • published 26 Jul 2021
  • disclosed 30 Jun 2020

How to fix?

There is no fixed version for Centos:8 dbus-libs.

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:8. See How to fix? for Centos:8 relevant fixed versions and status.

A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors