CVE-2025-37997

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-37997
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_bucket_end() which gave back the start and end hash bucket values belonging to a given region lock and ahash_region() which should give back the region lock belonging to a given hash bucket. The latter was incorrect which can lead to a race condition between the garbage collector and adding new elements when a hash type of set is defined with timeouts.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b Patch
https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658 Patch
https://git.kernel.org/stable/c/6e002ecc1c8cfdfc866b9104ab7888da54613e59 Patch
https://git.kernel.org/stable/c/82c1eb32693bc48251d92532975e19160987e5b9 Patch
https://git.kernel.org/stable/c/8478a729c0462273188263136880480729e9efca Patch
https://git.kernel.org/stable/c/a3dfec485401943e315c394c29afe2db8f9481d6 Patch
https://git.kernel.org/stable/c/aa77294b0f73bb8265987591460cd25b8722c3df Patch
https://git.kernel.org/stable/c/e2ab67672b2288521a6146034a971f9a82ffc5c5 Patch
https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
History

16 Dec 2025, 20:20

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b - () https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b - Patch
References () https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658 - () https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658 - Patch
References () https://git.kernel.org/stable/c/6e002ecc1c8cfdfc866b9104ab7888da54613e59 - () https://git.kernel.org/stable/c/6e002ecc1c8cfdfc866b9104ab7888da54613e59 - Patch
References () https://git.kernel.org/stable/c/82c1eb32693bc48251d92532975e19160987e5b9 - () https://git.kernel.org/stable/c/82c1eb32693bc48251d92532975e19160987e5b9 - Patch
References () https://git.kernel.org/stable/c/8478a729c0462273188263136880480729e9efca - () https://git.kernel.org/stable/c/8478a729c0462273188263136880480729e9efca - Patch
References () https://git.kernel.org/stable/c/a3dfec485401943e315c394c29afe2db8f9481d6 - () https://git.kernel.org/stable/c/a3dfec485401943e315c394c29afe2db8f9481d6 - Patch
References () https://git.kernel.org/stable/c/aa77294b0f73bb8265987591460cd25b8722c3df - () https://git.kernel.org/stable/c/aa77294b0f73bb8265987591460cd25b8722c3df - Patch
References () https://git.kernel.org/stable/c/e2ab67672b2288521a6146034a971f9a82ffc5c5 - () https://git.kernel.org/stable/c/e2ab67672b2288521a6146034a971f9a82ffc5c5 - Patch
References () https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html - () https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html - Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - Third Party Advisory
CPE cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc7:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc4:*:*:*:*:*:*
CWE CWE-667
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Debian
Debian debian Linux
Linux linux Kernel

03 Nov 2025, 20:18

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html -

03 Nov 2025, 18:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html -

04 Jun 2025, 13:15

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: ipset: corrección del bloqueo de región en tipos hash. El bloqueo de región introducido en la versión v5.6-rc4 contenía tres macros para gestionar los bloqueos de región: ahash_bucket_start(), ahash_bucket_end(), que devolvía los valores de inicio y fin del depósito hash correspondientes a un bloqueo de región determinado, y ahash_region(), que debería devolver el bloqueo de región correspondiente a un depósito hash determinado. Esta última era incorrecta, lo que puede generar una condición de ejecución entre el recolector de elementos no utilizados y la adición de nuevos elementos cuando se define un tipo hash de conjunto con tiempos de espera.
References
  • () https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b -
  • () https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658 -

29 May 2025, 14:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-29 14:15

Updated : 2025-12-16 20:20

NVD link : CVE-2025-37997

Mitre link : CVE-2025-37997

CVE.ORG link : CVE-2025-37997

JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
CWE-667

Improper Locking