Bug 2347899 (CVE-2022-49395)
| Summary: | CVE-2022-49395 kernel: um: Fix out-of-bounds read in LDT setup | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | dfreiber, drow, jburrell, vkumar |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A vulnerability was found in the Linux kernel's user mode (um) subsystem, specifically within the Local Descriptor Table (LDT) setup functionality. The issue arises from the syscall_stub_data() function misinterpreting the data_count parameter as a byte count rather than a count of longs, leading to an out-of-bounds read. This flaw could expose sensitive kernel memory and cause system instability.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
|
Description
OSIDB Bzimport
2025-02-26 03:10:38 UTC
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2025022650-CVE-2022-49395-7419@gregkh/T This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:8744 https://access.redhat.com/errata/RHSA-2025:8744 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:8743 https://access.redhat.com/errata/RHSA-2025:8743 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:10179 https://access.redhat.com/errata/RHSA-2025:10179 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2025:10211 https://access.redhat.com/errata/RHSA-2025:10211 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:10527 https://access.redhat.com/errata/RHSA-2025:10527 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:10829 https://access.redhat.com/errata/RHSA-2025:10829 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:10830 https://access.redhat.com/errata/RHSA-2025:10830 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support EXTENSION Via RHSA-2025:10828 https://access.redhat.com/errata/RHSA-2025:10828 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:11045 https://access.redhat.com/errata/RHSA-2025:11045 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2025:11570 https://access.redhat.com/errata/RHSA-2025:11570 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:13135 https://access.redhat.com/errata/RHSA-2025:13135 |