Red Hat Security Advisory: abrt security update
🔗 CVE IDs covered (2)
📋 Description
CVE-2026-54228 — abrt: TOCTOU race condition in abrt-dbus SetElement allows arbitrary file writes to dump directories CVE-2026-54229 — abrt: ChownProblemDir succeeds during active post-create event processing due to inadequate locking
🎯 Affected products110
- Red Hat Enterprise Linux Server (v. 7 ELS)
- Red Hat Enterprise Linux Server Optional (v. 7 ELS)
- abrt-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-0:2.1.11-61.el7_9.src as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-0:2.1.11-61.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-ccpp-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-ccpp-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-ccpp-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-ccpp-0:2.1.11-61.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-kerneloops-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-kerneloops-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-kerneloops-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-kerneloops-0:2.1.11-61.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-pstoreoops-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-pstoreoops-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-pstoreoops-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-pstoreoops-0:2.1.11-61.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-python-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-python-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-python-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-python-0:2.1.11-61.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-upload-watch-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
- abrt-addon-upload-watch-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
- abrt-addon-upload-watch-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
- abrt-addon-upload-watch-0:2.1.11-61.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7 ELS)
- abrt-addon-vmcore-0:2.1.11-61.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-vmcore-0:2.1.11-61.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- abrt-addon-vmcore-0:2.1.11-61.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7 ELS)
- +80 more not shown
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: The following practices would help for avoiding exposure and mitigate this flaw: - Disable or remove ABRT if it is not required. On RHEL 8 systems where ABRT is installed, it can be disabled with: systemctl disable --now abrtd.service abrt-journal-core.service abrt-oops.service abrt-xorg.service - On Fedora systems, consider using systemd-coredump instead of ABRT for crash handling, as ABRT is being phased out in favor of systemd-coredump - Restrict local user access to systems running ABRT, as this vulnerability requires local access Workaround: The following practices would help for avoiding exposure and mitigate this flaw: - Disable or remove ABRT if it is not required. On RHEL 8 systems where ABRT is installed, it can be disabled with: systemctl disable --now abrtd.service abrt-journal-core.service abrt-oops.service abrt-xorg.service - On Fedora systems, consider using systemd-coredump instead of ABRT for crash handling - Restrict local user access to systems running ABRT, as this vulnerability requires local access
🔗 References (5)
- selfhttps://access.redhat.com/errata/RHSA-2026:48866
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2488531
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2488532
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_48866.json