Skip to content
CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-84268

Gvfs: sftp: heap-based buffer overflow in read_reply()

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
redhat

Description

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GNOME gvfs

Default version status: unaffected

  • 0 to < 1.60.2affected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:1.54.4-4.el10_2.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

Default version status: affected

  • 0:1.54.4-2.el10_0.2 to < *unaffected

Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support

Default version status: affected

  • 0:1.36.2-7.el7_9.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

  • 0:1.36.2-22.el8_10 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Default version status: affected

  • 0:1.36.2-11.el8_4.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Default version status: affected

  • 0:1.36.2-11.el8_4.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Default version status: affected

  • 0:1.36.2-11.el8_6.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Default version status: affected

  • 0:1.36.2-11.el8_6.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Default version status: affected

  • 0:1.36.2-14.el8_8.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

Default version status: affected

  • 0:1.36.2-14.el8_8.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:1.48.1-8.el9_8.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Default version status: affected

  • 0:1.48.1-4.el9_2.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Default version status: affected

  • 0:1.48.1-4.el9_4.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support

Default version status: affected

  • 0:1.48.1-6.el9_6.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 6

Default version status: unknown

References