CVE-2022-42012

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-10-10 · updated 2026-06-17
Weakness: CWE-20

Description

An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. An authenticated attacker can cause dbus-daemon and other programs that use libdbus to crash by sending a message with attached file descriptors in an unexpected format.

Affected products

Fedoraproject Fedora: 35, 36, 37
Freedesktop Dbus: before 1.12.24; from 1.13.0 before 1.14.4; from 1.15.0 before 1.15.2 — fixed in 1.12.24, 1.14.4, 1.15.2

How to fix

Upgrade to a fixed version: Freedesktop Dbus 1.12.24, 1.14.4, 1.15.2. Check the vendor advisory for mitigations.

References

https://gitlab.freedesktop.org/dbus/dbus/-/issues/417
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E4CO7N226I3X5FNBR2MACCH6TS764VJP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ND74SKN56BCYL3QLEAAB6E64UUBRA5UG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SQCSLMCK2XGX23R2DKW2MSAICQAK6MT2/
https://security.gentoo.org/glsa/202305-08
https://www.openwall.com/lists/oss-security/2022/10/06/1
https://gitlab.freedesktop.org/dbus/dbus/-/issues/417
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E4CO7N226I3X5FNBR2MACCH6TS764VJP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ND74SKN56BCYL3QLEAAB6E64UUBRA5UG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SQCSLMCK2XGX23R2DKW2MSAICQAK6MT2/
https://security.gentoo.org/glsa/202305-08
https://www.openwall.com/lists/oss-security/2022/10/06/1

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