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Review reviewHigh

CVE-2024-50257

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: netfilter: Fix use-after-free in get_info() ip6table_nat module unload has refcnt warning for UAF. call trace is: WARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 module_put+0x6f/0x80 Modules linked in: ip6table_nat(-) CPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:module_put+0x6f/0x80 Call Trace: <TASK> get_info+0x128/0x180 do_ip6t_get_ctl+0x6a/0x430...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.11.09
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: netfilter: Fix use-after-free in get_info() ip6table_nat module unload has refcnt warning for UAF. call trace is: WARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 module_put+0x6f/0x80 Modules linked in: ip6table_nat(-) CPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:module_put+0x6f/0x80 Call Trace: <TASK> get_info+0x128/0x180 do_ip6t_get_ctl+0x6a/0x430...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 < ba22ea01348384df19cc1fabc7964be6e7189749, >= fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 < cb7c388b5967946f097afdb759b7c860305f2d96, >= fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 < 6a1f088f9807f5166f58902d26246d0b88da03a8, >= fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 < bab3bb35c03b263c486833d50d50c081d9e9832b, >= fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 < f48d258f0ac540f00fa617dac496c4c18b5dc2fa, >= 5.15, >= 5.15 < 5.15.171, >= 5.16 < 6.1.116, >= 6.2 < 6.6.60, >= 6.7 < 6.11.7, 6.12
Fixed versions
5.15.171, 6.1.116, 6.6.60, 6.11.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416