dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass.
CVE-2019-12749
Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.1; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.1
- EG Score
- 7.1(medium)
- EPSS
- 42.3%
- KEV
- Not listed
Published
June 11, 2019
Last Modified
February 13, 2026
References (35)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00059.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00092.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00026.html
- cve@mitrehttp://www.openwall.com/lists/oss-security/2019/06/11/2
- cve@mitrehttp://www.securityfocus.com/bid/108751
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:1726
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:2868
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:2870
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:3707
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2019/06/msg00005.html
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/
- cve@mitrehttps://seclists.org/bugtraq/2019/Jun/16
- cve@mitrehttps://security.gentoo.org/glsa/201909-08
- cve@mitrehttps://usn.ubuntu.com/4015-1/
- cve@mitrehttps://usn.ubuntu.com/4015-2/
Vendor Advisories for CVE-2019-12749(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libdbus-1-dev (1.10.6-1ubuntu3.4) @ xenial | 2026-05-27 | ubuntu |
| ubuntu | dbus-1-doc (1.6.18-0ubuntu4.5+esm1) @ trusty | 2026-05-27 | ubuntu |
| redhat | openshiftdo/odo-init-image-rhel7:1.1.3-2 | 2021-03-22 | redhat |
| redhat | dbus-1:1.10.24-15.el7 | 2020-09-29 | redhat |
| redhat | dbus-1:1.12.8-9.el8 | 2019-11-05 | redhat |
| redhat | dbus-1:1.2.24-9.el6_5 | 2019-09-23 | redhat |
| redhat | dbus-1:1.2.24-9.el6_6 | 2019-09-23 | redhat |
| redhat | dbus-1:1.2.24-11.el6_10 | 2019-07-10 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(8)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2019-127492020-09-25
dbus before 1.10.28 1.12.x before 1.12.16 and 1.13.x before 1.13.12 as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some less common uses of dbus-daemon) allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case this could result in the DBusServer reusing a cookie that is known to the malicious client and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid allowing authentication bypass.
- Red HatRHSA-2019:1726IMPORTANT2019-06-11
RHSA-2019:1726 — Important
- Red HatRHSA-2019:2868IMPORTANT2019-06-11
RHSA-2019:2868 — Important
- Red HatRHSA-2019:2870IMPORTANT2019-06-11
RHSA-2019:2870 — Important
- Red HatRHSA-2019:3707IMPORTANT2019-06-11
RHSA-2019:3707 — Important
- Red HatRHSA-2020:4032IMPORTANT2019-06-11
RHSA-2020:4032 — Important
- UbuntuUSN-4015-1MEDIUM
DBus vulnerability
- UbuntuUSN-4015-2MEDIUM
DBus vulnerability
Data Freshness Timeline
(refreshed 12× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-03 09:56 UTCOSV refresh
- 2026-07-02 16:56 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-29 14:03 UTCEPSS rescore
- 2026-06-28 14:04 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
Show 50 moreShow fewer
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-15 00:13 UTCOSV refresh
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 13:19 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-01 13:50 UTCEPSS rescore
- 2026-06-01 13:50 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 18:32 UTCEG score recompute
- 2026-05-27 18:32 UTCVendor advisory
- 2026-05-27 18:32 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 12:15 UTCOSV refresh
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc · redhat
Frequently asked(5)
What is CVE-2019-12749?
When was CVE-2019-12749 disclosed?
Is CVE-2019-12749 actively exploited?
What is the CVSS score of CVE-2019-12749?
How do I remediate CVE-2019-12749?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-12749
Is Your Infrastructure Affected by CVE-2019-12749?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.