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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2023-4194

Kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid

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Status
Published
Published
Updated
Assigning organization
redhat

Description

A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.

Affected products

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

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:5.14.0-362.8.1.el9_3 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:5.14.0-362.8.1.el9_3 to < *unaffected

Red Hat Red Hat Enterprise Linux 6

Default version status: unaffected

Red Hat Red Hat Enterprise Linux 7

Default version status: unaffected

Red Hat Red Hat Enterprise Linux 7

Default version status: unaffected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

Red Hat Red Hat Enterprise Linux 8

Default version status: affected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

Red Hat Red Hat Virtualization 4

Default version status: unknown

References