Libssh: out-of-bounds read in sftp_handle()

8.1 CVSS

Vulnerability Description

A flaw was found in the libssh library in versions less than 0.11.2. An out-of-bounds read can be triggered in the sftp_handle function due to an incorrect comparison check that permits the function to access memory beyond the valid handle list and to return an invalid pointer, which is used in further processing. This vulnerability allows an authenticated remote attacker to potentially read unintended memory regions, exposing sensitive information or affect service behavior.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Ronald Crane for reporting this issue.

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Affected Vendor

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Affected Software

Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat OpenShift Container Platform 4.12, Red Hat OpenShift Container Platform 4.13, Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15, Red Hat OpenShift Container Platform 4.16, Red Hat OpenShift Container Platform 4.17, Red Hat OpenShift Container Platform 4.18, Red Hat OpenShift Container Platform 4.19, Red Hat OpenShift Container Platform 4.20, Red Hat AI Inference Server 3.2, Red Hat OpenShift distributed tracing 3.7.1

Vulnerable Versions:

0, 0:0.11.1-4.el10_0, 0:0.11.1-4.el10_1, 0:0.9.6-15.el8_10, 0:0.9.0-4.el8_2.1, 0:0.9.4-2.el8_4.1, 0:0.9.6-4.el8_6.1, 0:0.9.6-13.el8_8.1, 0:0.10.4-15.el9_6, 0:0.10.4-15.el9_7, 0:0.9.6-3.el9_0.1, 0:0.10.4-9.el9_2.1, 0:0.10.4-13.el9_4.1, 412.86.202511191939-0, 413.92.202511261311-0, 414.92.202511122212-0, 415.92.202601271320-0, 416.94.202601071926-0, 417.94.202510282022-0, 418.94.202511041748-0, 4.19.9.6.202510281054-0, 4.20.9.6.202510290321-0, 3.2.2-1765379088, 3.2.2-1765379049, 3.2.2-1764871796, 1772160593, 1772160625, rhosdt-3.7-1762254546, rhosdt-3.7-1762254552, rhosdt-3.7-1762255881, rhosdt-3.7-1762254530, rhosdt-3.7-1762254519, rhosdt-3.7-1762254545