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1 vulnerability found for Red Hat Virtualization 4 by Red Hat
CVE-2023-4194 (GCVE-0-2023-4194)
Vulnerability from cvelistv5
Published
2023-08-07 13:19
Modified
2025-11-14 14:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - Incorrect Authorization
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
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Impacted products
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| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected: 0:5.14.0-362.8.1.el9_3 < * cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::nfv cpe:/o:redhat:enterprise_linux:9::baseos cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::realtime |
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