Description
An issue was discovered in dbus-broker before 31. It depends on c-uitl/c-shquote to parse the DBus service's Exec line. c-shquote contains a stack-based buffer over-read if a malicious Exec line is supplied.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dbus-broker | 30-1 | — |
| Debian 13 | dbus-broker | 30-1 | — |
| Debian 12 | dbus-broker | 30-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | dbus-broker | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | dbus-broker | 28-5.1.el9_0 | RHSA-2022:6608 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | dbus-broker | 28-5.1.el9_0 | ALSA-2022:6608 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | dbus-broker | 28-5.1.el9 | RLSA-2022:6608 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP4 | dbus-broker | 28-bp154.2.3.1 | openSUSE-SU-2022:10030-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dbus-broker | 28-bp154.2.3.1 | openSUSE-SU-2022:10030-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | dbus-broker | 32-1.amzn2023.0.2 | ALAS2023-2023-080 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | dbus-broker | 28-5.1.el9_0 | ELSA-2022-6608 |
Advisories 7
- ALSA-2022:6608 Moderate: dbus-broker security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:6608 Red Hat Security Advisory: dbus-broker security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RLSA-2022:6608 Moderate: dbus-broker security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2022:10030-1 Security update for dbus-broker SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1489 dbus: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 22, 2024
- ALAS2023-2023-080 Moderate: dbus-broker security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ELSA-2022-6608 Moderate: dbus-broker security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Sep 21, 2022