Description
A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.
References (7)
Core 7
Core References
Patch, Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2394
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2950
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3138
Third Party Advisory vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-39193
Issue Tracking, Patch, Third Party Advisory issue-tracking
x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2226787
Scores
CVSS v3
6.1
EPSS
0.0001
EPSS Percentile
0.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (4)
fedoraproject/fedora
38
linux/linux_kernel
< 6.6
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
Published
Oct 09, 2023
Tracked Since
Feb 18, 2026