CVE Feed

    Dashboard / CVE / CVE-2023-4147

    CVE-2023-4147

    A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

    Published:Jul 23, 2023
    Last Modified:Feb 25, 2026
    EPS:Aug 7, 2023
    EPSS Score:0.00161
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux For Real Time
    Vendor
    Redhat
    Product
    Enterprise Linux For Real Time For Nfv
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    https://github.com/murdok1982/Exploit-en-Python-para-CVE-2023-4147

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-77118 (CVSS 8.4) — A heap out-of-bounds write exists in the Photo CD (PCD) decoder of GraphicsMagick. In DecodeImage() (coders/pc…
    CVE-2026-56968 (CVSS 3.7) — GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, w…
    CVE-2026-49975 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of …
    CVE-2026-9256 (CVSS 9.2) — NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerabilit…
    CVE-2026-31431 (CVSS 7.8) — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating …
    CVE-2026-34757 (CVSS 5.1) — LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network …
    CVE-2026-4775 (CVSS 7.8) — A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerabili…
    CVE-2025-63261 (CVSS 7.8) — AWStats 8.0 is vulnerable to Command Injection via the open function…
    CVE-2026-3497 (CVSS 6.9) — Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects …
    CVE-2026-1940 (CVSS 5.1) — An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The p…

    References

    https://access.redhat.com/errata/RHSA-2023:5069
    https://access.redhat.com/errata/RHSA-2023:5091
    https://access.redhat.com/errata/RHSA-2023:5093
    https://access.redhat.com/errata/RHSA-2023:7382
    https://access.redhat.com/errata/RHSA-2023:7389
    https://access.redhat.com/errata/RHSA-2023:7411
    https://access.redhat.com/security/cve/CVE-2023-4147
    https://bugzilla.redhat.com/show_bug.cgi?id=2225239
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211
    https://www.spinics.net/lists/stable/msg671573.html
    https://access.redhat.com/errata/RHSA-2023:5069
    https://access.redhat.com/errata/RHSA-2023:5091
    https://access.redhat.com/errata/RHSA-2023:5093
    https://access.redhat.com/errata/RHSA-2023:7382
    https://access.redhat.com/errata/RHSA-2023:7389
    https://access.redhat.com/errata/RHSA-2023:7411
    https://access.redhat.com/security/cve/CVE-2023-4147
    https://bugzilla.redhat.com/show_bug.cgi?id=2225239
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211
    https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
    https://security.netapp.com/advisory/ntap-20231020-0006/
    https://www.debian.org/security/2023/dsa-5480
    https://www.debian.org/security/2023/dsa-5492
    https://www.spinics.net/lists/stable/msg671573.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High