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CVE-2023-4194
CVE ID
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CVE-2023-4194
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
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.
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CVSS V3 Severity and Metrics
General Information
Vendors
- debian,
- fedoraproject,
- linux,
- redhat
Products
- debian linux 10.0,
- debian linux 11.0,
- debian linux 12.0,
- enterprise linux 8.0,
- enterprise linux 9.0,
- fedora 37,
- fedora 38,
- linux kernel,
- linux kernel 6.5
References
Miscellaneous
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
