CVE-2024-53206

HIGH EPSS 12.4%
Published Dec 27, 20241y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix use-after-free of nreq in reqsk_timer_handler(). The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with __inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler(). Then, oreq should be passed to reqsk_put() instead of req; otherwise use-after-free of nreq could happen when reqsk is migrated but the retry attempt failed (e.g. due to timeout). Let's pass oreq to reqsk_put().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
12.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥5.15.170  –  <5.15.174
linuxlinux_kernel*≥6.1.115  –  <6.1.120
linuxlinux_kernel*≥6.6.59  –  <6.6.64
linuxlinux_kernel*≥6.11.6  –  <6.11.11
linuxlinux_kernel*≥6.12  –  <6.12.2

References 7

  • git.kernel.org https://git.kernel.org/stable/c/2dcc86fefe09ac853158afd96b60d544af115dc5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65ed89cad1f57034c256b016e89e8c0a4ec7c65b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6d845028609a4af0ad66f499ee0bd5789122b067
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a3c1ad93e6fba67b3a637cfa95a57a6685e4908
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c31e72d021db2714df03df6c42855a1db592716c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d0eb14cb8c08b00c36a3d5dc57a6f428b301f721
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2dcc86fefe09ac853158afd96b60d544af115dc5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/65ed89cad1f57034c256b016e89e8c0a4ec7c65b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6d845028609a4af0ad66f499ee0bd5789122b067
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a3c1ad93e6fba67b3a637cfa95a57a6685e4908
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c31e72d021db2714df03df6c42855a1db592716c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d0eb14cb8c08b00c36a3d5dc57a6f428b301f721
    Patch