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CVE-2023-4194

CVSS v3.1 5.5 (Medium)
55% Progress
EPSS 0.04 % (5th)
0.04% Progress
Affected Products 4
Advisories 35
NVD Status Modified
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
CWE-863
Incorrect Authorization
Related CVEs
CVE Status
PUBLISHED
NVD Status
Modified
CNA
Red Hat, Inc.
Published Date
2023-08-07 14:15:11
(13 months ago)
Updated Date
2024-09-06 18:15:05
(10 days ago)

Affected Products

Debian

Fedoraproject

Linux

Redhat

Configuration #1

    CPE23 From Up To
  Linux Kernel 6.4 and prior versions cpe:2.3:o:linux:linux_kernel <= 6.4
  Linux Kernel 6.5 Rc1 cpe:2.3:o:linux:linux_kernel:6.5:rc1
  Linux Kernel 6.5 Rc2 cpe:2.3:o:linux:linux_kernel:6.5:rc2
  Linux Kernel 6.5 Rc3 cpe:2.3:o:linux:linux_kernel:6.5:rc3
  Linux Kernel 6.5 Rc4 cpe:2.3:o:linux:linux_kernel:6.5:rc4

Configuration #2

    CPE23 From Up To
  Redhat Enterprise Linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0
  Redhat Enterprise Linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0

Configuration #3

    CPE23 From Up To
  Fedoraproject Fedora 37 cpe:2.3:o:fedoraproject:fedora:37
  Fedoraproject Fedora 38 cpe:2.3:o:fedoraproject:fedora:38

Configuration #4

    CPE23 From Up To
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0
  Debian Linux 11.0 cpe:2.3:o:debian:debian_linux:11.0
  Debian Linux 12.0 cpe:2.3:o:debian:debian_linux:12.0