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.
Conclusion & alert: CVE-2008-3834 is rated Exploit Available (58.2/100): CVSS Low severity, with high exploitation likelihood (EPSS 4.62%, 90th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.14% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 7822 | exploit_db | edb | 2009-01-19 | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.49% | 4.62% | +3.14% |
| 2 | 2026-06-13 | 1.85% | 1.49% | -0.37% |
| 3 | 2025-12-17 | — | 1.85% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2008-3834 not yet assigned priority: Debian including 1 source packages (dbus), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2008-3834 |
gentoo
|
normal | CVE-2008-3834: 1 GLSA(s) (200901-04), 1 atom(s) (sys-apps/dbus); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2008-3834 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2008-3834 |
suse
|
medium | CVE-2008-3834 severity moderate: SUSE including 41 source package names (dbus-1-1.12.20-5.5, dbus-1-1.14.10-1.11, …), 41 product×package rows across 9 product lines (SUSE Linux Enterprise Server 11 SP1, SUSE Linux Enterprise Server 11 SP2, … (9 product lines)): Fixed 41. | https://www.suse.com/security/cve/CVE-2008-3834/ |
ubuntu
|
low | CVE-2008-3834 low priority: Ubuntu including 1 source packages (dbus), 5 status rows across 5 suites (dapper, feisty, gutsy, hardy, upstream): released 5. | https://ubuntu.com/security/CVE-2008-3834 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| freedesktop | dbus | <= 1.1.4 | cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.1 | cpe:2.3:a:freedesktop:dbus:0.1:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.2 | cpe:2.3:a:freedesktop:dbus:0.2:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.3 | cpe:2.3:a:freedesktop:dbus:0.3:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.4 | cpe:2.3:a:freedesktop:dbus:0.4:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.5 | cpe:2.3:a:freedesktop:dbus:0.5:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.6 | cpe:2.3:a:freedesktop:dbus:0.6:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.7 | cpe:2.3:a:freedesktop:dbus:0.7:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.8 | cpe:2.3:a:freedesktop:dbus:0.8:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.9 | cpe:2.3:a:freedesktop:dbus:0.9:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.10 | cpe:2.3:a:freedesktop:dbus:0.10:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.11 | cpe:2.3:a:freedesktop:dbus:0.11:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.12 | cpe:2.3:a:freedesktop:dbus:0.12:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.13 | cpe:2.3:a:freedesktop:dbus:0.13:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.20 | cpe:2.3:a:freedesktop:dbus:0.20:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.21 | cpe:2.3:a:freedesktop:dbus:0.21:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.22 | cpe:2.3:a:freedesktop:dbus:0.22:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.23 | cpe:2.3:a:freedesktop:dbus:0.23:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.23.1 | cpe:2.3:a:freedesktop:dbus:0.23.1:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.23.2 | cpe:2.3:a:freedesktop:dbus:0.23.2:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.23.3 | cpe:2.3:a:freedesktop:dbus:0.23.3:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.31 | cpe:2.3:a:freedesktop:dbus:0.31:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.32 | cpe:2.3:a:freedesktop:dbus:0.32:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.33 | cpe:2.3:a:freedesktop:dbus:0.33:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.34 | cpe:2.3:a:freedesktop:dbus:0.34:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.35 | cpe:2.3:a:freedesktop:dbus:0.35:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.35.1 | cpe:2.3:a:freedesktop:dbus:0.35.1:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.35.2 | cpe:2.3:a:freedesktop:dbus:0.35.2:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.36 | cpe:2.3:a:freedesktop:dbus:0.36:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.36.1 | cpe:2.3:a:freedesktop:dbus:0.36.1:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.36.2 | cpe:2.3:a:freedesktop:dbus:0.36.2:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.50 | cpe:2.3:a:freedesktop:dbus:0.50:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.61 | cpe:2.3:a:freedesktop:dbus:0.61:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.62 | cpe:2.3:a:freedesktop:dbus:0.62:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.90 | cpe:2.3:a:freedesktop:dbus:0.90:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.91 | cpe:2.3:a:freedesktop:dbus:0.91:*:*:*:*:*:*:* |
| freedesktop | dbus | 0.92 | cpe:2.3:a:freedesktop:dbus:0.92:*:*:*:*:*:*:* |
| freedesktop | dbus | 1.0.2 | cpe:2.3:a:freedesktop:dbus:1.0.2:*:*:*:*:*:*:* |
| freedesktop | dbus | 1.1.1 | cpe:2.3:a:freedesktop:dbus:1.1.1:*:*:*:*:*:*:* |
| freedesktop | dbus | 1.1.2 | cpe:2.3:a:freedesktop:dbus:1.1.2:*:*:*:*:*:*:* |
| freedesktop | dbus1.0 | rc1 | cpe:2.3:a:freedesktop:dbus1.0:rc1:*:*:*:*:*:*:* |
| freedesktop | dbus1.0 | rc2 | cpe:2.3:a:freedesktop:dbus1.0:rc2:*:*:*:*:*:*:* |
| freedesktop | dbus1.0 | rc3 | cpe:2.3:a:freedesktop:dbus1.0:rc3:*:*:*:*:*:*:* |
| freedesktop | dbus1.1.0 | — | cpe:2.3:a:freedesktop:dbus1.1.0:*:*:*:*:*:*:*:* |