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Fencer Intel
medium 4.6

CVE-2011-2200 json

The _dbus_header_byteswap function in dbus-marshal-header.c in D-Bus (aka DBus) 1.2.x before 1.2.28, 1.4.x before 1.4.12, and 1.5.x before…

published 2011-06-22 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2190

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

The _dbus_header_byteswap function in dbus-marshal-header.c in D-Bus (aka DBus) 1.2.x before 1.2.28, 1.4.x before 1.4.12, and 1.5.x before 1.5.4 does not properly handle a non-native byte order, which allows local users to cause a denial of service (connection loss), obtain potentially sensitive information, or conduct unspecified state-modification attacks via crafted messages.

Patch / fix

  • dbus Debian 14, Debian 13, Debian 12 1.4.12-1

debian advisories DEBIAN-CVE-2011-2200

  • dbus RHEL 5 1.1.2-16.el5_7
  • dbus RHEL 6 1:1.2.24-5.el6_1
  • dbus-x11 RHEL 5 1.1.2-16.el5_7
  • dbus-x11 RHEL 6 1:1.2.24-5.el6_1
  • dbus-libs RHEL 5 1.1.2-16.el5_7
  • dbus-libs RHEL 6 1:1.2.24-5.el6_1

red hat advisories RHSA-2011:1132

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-2200 updated cvss 2.1

dbus: Local DoS via messages with non-native byte order

  • Red Hat Enterprise Linux (v. 5 server) dbus 1.1.2-16.el5_7, dbus-x11 1.1.2-16.el5_7, dbus-libs 1.1.2-16.el5_7 Red Hat Enterprise Linux Desktop (v. 5 client) dbus 1.1.2-16.el5_7, dbus-x11 1.1.2-16.el5_7, dbus-libs 1.1.2-16.el5_7 Red Hat Enterprise Linux Server (v. 6) dbus 1.2.24-5.el6_1, dbus-x11 1.2.24-5.el6_1, dbus-libs 1.2.24-5.el6_1 Red Hat Enterprise Linux Server Optional (v. 6) dbus 1.2.24-5.el6_1 Red Hat RHEL Desktop Workstation (v. 5 client) dbus 1.1.2-16.el5_7
    fixed: vendor fix RHSA-2011:1132
  • Red Hat Enterprise Linux 4 dbus
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.