Published: 15/02/2021 Updated: 27/12/2023

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 641

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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

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freedesktop dbus 1.12.20

A use-after-free flaw was found in D-Bus before version 11220 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 undef ...

CWE-416 https://bugs.gentoo.org/755392 https://bugzilla.redhat.com/show_bug.cgi?id=1909101 https://security-tracker.debian.org/tracker/CVE-2020-35512 https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128 https://nvd.nist.gov https://security.archlinux.org/CVE-2020-35512

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CVE-2020-35512

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