Abrt: chownproblemdir succeeds during active post-create event processing due to inadequate locking
Priority LOW 32CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 8 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
A race condition was found in the abrt-dbus D-Bus service's ChownProblemDir method. ChownProblemDir opens the dump directory with DD_OPEN_READONLY and calls dd_chown to change ownership of all files to the caller's uid, succeeding even while post-create event handlers hold a write lock. This allows an attacker to gain filesystem-level control of the dump directory while privileged event scripts are still running.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00124 2nd percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 8 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 2.1.11-61.el7_9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 2.10.9-26.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 2.10.9-25.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 2.10.9-25.el8_4.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 2.10.9-25.el8_6.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | 2.10.9-25.el8_6.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 2.10.9-25.el8_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 2.10.9-25.el8_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 2.1.11-61.el7_9 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 2.10.9-26.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.10.9-25.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 2.10.9-25.el8_4.1 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.10.9-25.el8_6.1 Patch available CNA
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 2.10.9-25.el8_6.1 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 2.10.9-25.el8_8.1 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.10.9-25.el8_8.1 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::appstream | 8 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/a:redhat:rhel_tus:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8::appstream Versions 8 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/a:redhat:rhel_tus:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
Remediation
Red Hat 5 advisories
- RHSA-2026:54272 Released 2026-08-12 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream (v. 8) abrt-2.10.9-26.el8_10, abrt-addon-ccpp-2.10.9-26.el8_10, abrt-addon-coredump-helper-2.10.9-26.el8_10 +19
- RHSA-2026:48866 Released 2026-07-31 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux Server (v. 7 ELS) abrt-dbus-2.1.11-61.el7_9
- RHSA-2026:48819 Released 2026-07-31 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) abrt-dbus-2.10.9-25.el8_6.1
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) abrt-dbus-2.10.9-25.el8_6.1
Show 2 more Red Hat advisories
- RHSA-2026:48865 Released 2026-07-31 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) abrt-dbus-2.10.9-25.el8_4.1
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) abrt-dbus-2.10.9-25.el8_4.1
- RHSA-2026:48864 Released 2026-07-31 · Red Hat rating Importantabrt security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) abrt-dbus-2.10.9-25.el8_8.1
- Red Hat Enterprise Linux AppStream TUS (v.8.8) abrt-dbus-2.10.9-25.el8_8.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 Extended Lifecycle Support and 7 more products — RHSA-2026:54272
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-39133 Abrt: event handler scripts follow symlinks when writing output files, allowing arbitrary file overwritesPriority LOW 35
- TI-2026-39131 Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directoriesPriority LOW 35
- TI-2026-39134 Abrt: unsanitized systemd journal content written to dump directory files enables content injectionPriority LOW 24
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 Extended Lifecycle Support and 7 more products — RHSA-2026:48819
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39131 Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directoriesPriority LOW 35
Show 3 more groups
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 Extended Lifecycle Support and 7 more products — RHSA-2026:48864
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39131 Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directoriesPriority LOW 35
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 Extended Lifecycle Support and 7 more products — RHSA-2026:48865
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39131 Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directoriesPriority LOW 35
- Advisory ·
Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 Extended Lifecycle Support and 7 more products — RHSA-2026:48866
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-39131 Abrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump directoriesPriority LOW 35
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:54272 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2026:48865 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2026:48819 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:48864 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2026:48865 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) | Fixed | RHSA-2026:48819 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:48864 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2026:48866 |
Not affected: 8 products
- Red Hat Enterprise Linux AppStream AUS (v.8.4)
- Red Hat Enterprise Linux AppStream AUS (v.8.6)
- Red Hat Enterprise Linux AppStream E4S (v.8.8)
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
- Red Hat Enterprise Linux AppStream TUS (v.8.8)
- Red Hat Enterprise Linux Server (v. 7 ELS)
- Red Hat Enterprise Linux Server Optional (v. 7 ELS)
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54229
- 2026-10-03 Alias added: GHSA-c3cq-8jxp-w66j
References
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Sources
- CVE-2026-54229 · CVE Program
- CVE-2026-54229 · NVD
- FIRST EPSS
- GHSA-c3cq-8jxp-w66j · GitHub Advisory Database · CC BY 4.0
- CVE-2026-54229 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences