Vulnerability Details CVE-2020-35512
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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.6%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 7.2
References
- https://bugs.gentoo.org/755392
- https://bugzilla.redhat.com/show_bug.cgi?id=1909101
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128
- https://security-tracker.debian.org/tracker/CVE-2020-35512
- https://bugs.gentoo.org/755392
- https://bugzilla.redhat.com/show_bug.cgi?id=1909101
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128
- https://security-tracker.debian.org/tracker/CVE-2020-35512
Products affected by CVE-2020-35512
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cpe:2.3:a:freedesktop:dbus:1.12.20
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cpe:2.3:o:linux:linux_kernel:-