VDB
RHSA-2026:54247
RHSA-2026:54247
PUBLISHED
CVSS 7 HIGH
A flaw was found in the Linux kernel's Universal Disk Format (UDF) filesystem. A remote attacker could exploit this vulnerability by tricking a user into mounting a specially crafted UDF image containing repeated partition descriptors. This could lead to a heap out-of-bounds write, potentially causing system instability, denial of service, or arbitrary code execution.
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | kernel-rt-modules-extra-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debuginfo-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-debuginfo-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-debuginfo-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debuginfo-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-0:4.18.0-553.155.1.rt7.496.el8_10.src as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-kvm-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-0:4.18.0-553.155.1.rt7.496.el8_10.src as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-devel-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-modules-extra-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-modules-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-modules-extra-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-devel-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-modules-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
| Red Hat | kernel-rt-debug-core-0:4.18.0-553.155.1.rt7.496.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8) | 4.18.0-553.155.1.rt7.496.el8 |
…and 10 more
Timeline
- Aug 12, 2026 CVE Published
- Aug 12, 2026 CVE Updated
- Aug 12, 2026 Distribution Patch
- Aug 12, 2026 Distribution Patch
- Aug 12, 2026 Security Advisory
- Aug 12, 2026 Security Advisory
- Aug 12, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:54247 advisory
- https://access.redhat.com/security/updates/classification/#moderate advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2482113 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2492390 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_54247.json advisory
- https://access.redhat.com/security/cve/CVE-2026-45991 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-45991 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-45991 advisory
- https://lore.kernel.org/linux-cve-announce/2026052739-CVE-2026-45991-24df@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-53009 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-53009 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-53009 advisory
- https://lore.kernel.org/linux-cve-announce/2026062449-CVE-2026-53009-4fef@gregkh/T advisory