SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2008-3834

The dbus_signature_validate function in the D-bus library (libdbus) before 1.2.4 allows remote attackers to cause a denial of service (application abort) via a message containing a malformed signature, which triggers a failed assertion error.

EXPLOIT ✓LOW 2.1EPSS 4.58%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is low and EPSS is 4.6%. Treat it as high on anything reachable from the internet.

Description

The dbus_signature_validate function in the D-bus library (libdbus) before 1.2.4 allows remote attackers to cause a denial of service (application abort) via a message containing a malformed signature, which triggers a failed assertion error.

CVSS 2.0
2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS
4.58% probability · 92th percentile
Public exploits
1 in Exploit-DB · verified · first 19 January 2009
CISA KEV
Not listed
Weakness
CWE-20
Affected
freedesktop/dbus · freedesktop/dbus1.0 · freedesktop/dbus1.1.0
Source
secalert@redhat.com
EPSS trend
0%3%5%26 October 2026: 4.58%26 October 202626 October 2026

EPSS 4.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-7822source ↗D-Bus Daemon < 1.2.4 - 'libdbus' Denial of Servicemultiple · Jon Oberheidedos19 January 2009yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.