FKIE_CVE-2023-4194

Vulnerability from fkie_nvd - Published: 2023-08-07 14:15 - Updated: 2024-11-21 08:34
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:6583Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4194Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2229498Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/Mailing List, Patch, Vendor Advisory
secalert@redhat.comhttps://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/Mailing List, Patch, Vendor Advisory
secalert@redhat.comhttps://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:6583Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4194Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2229498Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231027-0002/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5480
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5492
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.5
linux linux_kernel 6.5
linux linux_kernel 6.5
linux linux_kernel 6.5
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
fedoraproject fedora 37
fedoraproject fedora 38
debian debian_linux 10.0
debian debian_linux 11.0
debian debian_linux 12.0
To clipboard 

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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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