Vulnerability-Lookup

BDU:2026-01459 (CVE-2023-53817)

Vulnerability from fstec – Published: 2026-02-09 – Updated: 2026-02-09 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции mpi_cmp_ui() модуля lib/crypto/mpi/mpi-cmp.c ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции mpi_cmp_ui() модуля lib/crypto/mpi/mpi-cmp.c ядра операционной системы Linux связана с разыменованием указателей. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity

4.6 (Medium) CVSS 2.0


                      
                        AV:L/AC:L/Au:S/C:N/I:N/A:C

5.5 (Medium) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-476 - Разыменование указателя NULL

Aliases

CVE-2023-53817

References

18 references

URL
https://www.cve.org/CVERecord?id=CVE-2023-53817
https://git.kernel.org/stable/c/fde791e8a96a64ea7b0ad2440e43586447a209c6
https://git.kernel.org/stable/c/ae63e84ffda74267bf7277c38415ba38389229a0
https://git.kernel.org/stable/c/61f5453e9706e99713825594e0c8f9031485fb5f
https://git.kernel.org/stable/c/0fc7147c694394f8a8cbc19570c6bc918cac0906
https://git.kernel.org/stable/c/67589d247909043e94d2dd5fb590958e0f99d58d
https://git.kernel.org/stable/c/d3ad023a39f1127dcfd331c562673355dc078650
https://git.kernel.org/stable/c/12ac013ad7ff0df066451e825801d805095b3776
https://git.kernel.org/linus/9e47a758b70167c9301d2b44d2569f86c7796f2d
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.326
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.295
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.257
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.197
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5
https://lore.kernel.org/linux-cve-announce/2025120945-CVE-2023-53817-49a5@gregkh/
https://security-tracker.debian.org/tracker/CVE-2023-53817

Impacted products

2 products from 1 vendor

Vendors

Сообщество свободного программного обеспечения

Products

Debian GNU/Linux, Linux

Versions

11 (Debian GNU/Linux), 12 (Debian GNU/Linux), от 4.20 до 5.4.256 включительно (Linux), от 4.15 до 4.19.294 включительно (Linux), от 5.5 до 5.10.196 включительно (Linux), от 5.11 до 5.15.132 включительно (Linux), от 5.16 до 6.1.54 включительно (Linux), от 6.2 до 6.5.4 включительно (Linux), от 3.7 до 4.14.325 включительно (Linux)

Product types

Operating system

Platforms

Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.256 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.294 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.196 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.132 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.1.54 включительно, Сообщество свободного программного обеспечения Linux от 6.2 до 6.5.4 включительно, Сообщество свободного программного обеспечения Linux от 3.7 до 4.14.325 включительно

Mitigations

В условиях отсутствия обновлений безопасности от производителя рекомендуется придерживаться "Рекомендаций по безопасной настройке операционных систем LINUX", изложенных в методическом документе ФСТЭК России, утверждённом 25 декабря 2022 года. Использование рекомендаций: Для Linux: https://lore.kernel.org/linux-cve-announce/2025120945-CVE-2023-53817-49a5@gregkh/ https://git.kernel.org/stable/c/fde791e8a96a64ea7b0ad2440e43586447a209c6 https://git.kernel.org/stable/c/ae63e84ffda74267bf7277c38415ba38389229a0 https://git.kernel.org/stable/c/61f5453e9706e99713825594e0c8f9031485fb5f https://git.kernel.org/stable/c/0fc7147c694394f8a8cbc19570c6bc918cac0906 https://git.kernel.org/stable/c/67589d247909043e94d2dd5fb590958e0f99d58d https://git.kernel.org/stable/c/d3ad023a39f1127dcfd331c562673355dc078650 https://git.kernel.org/stable/c/12ac013ad7ff0df066451e825801d805095b3776 https://git.kernel.org/linus/9e47a758b70167c9301d2b44d2569f86c7796f2d https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.326 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.295 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.257 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.197 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-53817

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "\u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "11 (Debian GNU/Linux), 12 (Debian GNU/Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.256 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.294 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.196 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.132 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 6.1.54 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.2 \u0434\u043e 6.5.4 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 3.7 \u0434\u043e 4.14.325 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0412 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \"\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c LINUX\", \u0438\u0437\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0432 \u043c\u0435\u0442\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0435 \u0424\u0421\u0422\u042d\u041a \u0420\u043e\u0441\u0441\u0438\u0438, \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0451\u043d\u043d\u043e\u043c 25 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2022 \u0433\u043e\u0434\u0430.\n\n\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\n\u0414\u043b\u044f Linux:\nhttps://lore.kernel.org/linux-cve-announce/2025120945-CVE-2023-53817-49a5@gregkh/\nhttps://git.kernel.org/stable/c/fde791e8a96a64ea7b0ad2440e43586447a209c6\nhttps://git.kernel.org/stable/c/ae63e84ffda74267bf7277c38415ba38389229a0\nhttps://git.kernel.org/stable/c/61f5453e9706e99713825594e0c8f9031485fb5f\nhttps://git.kernel.org/stable/c/0fc7147c694394f8a8cbc19570c6bc918cac0906\nhttps://git.kernel.org/stable/c/67589d247909043e94d2dd5fb590958e0f99d58d\nhttps://git.kernel.org/stable/c/d3ad023a39f1127dcfd331c562673355dc078650\nhttps://git.kernel.org/stable/c/12ac013ad7ff0df066451e825801d805095b3776\nhttps://git.kernel.org/linus/9e47a758b70167c9301d2b44d2569f86c7796f2d\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.326\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.295\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.257\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.197\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2023-53817",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "11.08.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "09.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "09.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-01459",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2023-53817",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Debian GNU/Linux, Linux",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "\u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 11 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 12 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.20 \u0434\u043e 5.4.256 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.15 \u0434\u043e 4.19.294 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.5 \u0434\u043e 5.10.196 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.11 \u0434\u043e 5.15.132 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.16 \u0434\u043e 6.1.54 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.2 \u0434\u043e 6.5.4 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 3.7 \u0434\u043e 4.14.325 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 mpi_cmp_ui() \u043c\u043e\u0434\u0443\u043b\u044f lib/crypto/mpi/mpi-cmp.c \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0420\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f NULL (CWE-476)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 mpi_cmp_ui() \u043c\u043e\u0434\u0443\u043b\u044f lib/crypto/mpi/mpi-cmp.c \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0440\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0435\u0439. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://www.cve.org/CVERecord?id=CVE-2023-53817\nhttps://git.kernel.org/stable/c/fde791e8a96a64ea7b0ad2440e43586447a209c6\nhttps://git.kernel.org/stable/c/ae63e84ffda74267bf7277c38415ba38389229a0\nhttps://git.kernel.org/stable/c/61f5453e9706e99713825594e0c8f9031485fb5f\nhttps://git.kernel.org/stable/c/0fc7147c694394f8a8cbc19570c6bc918cac0906\nhttps://git.kernel.org/stable/c/67589d247909043e94d2dd5fb590958e0f99d58d\nhttps://git.kernel.org/stable/c/d3ad023a39f1127dcfd331c562673355dc078650\nhttps://git.kernel.org/stable/c/12ac013ad7ff0df066451e825801d805095b3776\nhttps://git.kernel.org/linus/9e47a758b70167c9301d2b44d2569f86c7796f2d\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.326\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.295\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.257\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.197\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.133\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.55\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.5\nhttps://lore.kernel.org/linux-cve-announce/2025120945-CVE-2023-53817-49a5@gregkh/\nhttps://security-tracker.debian.org/tracker/CVE-2023-53817",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-476",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,6)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,5)"
}

CVE-2023-53817 (GCVE-0-2023-53817)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:01 – Updated: 2026-08-05 09:16

Title

crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() During NVMeTCP Authentication a controller can trigger a kernel oops by specifying the 8192 bit Diffie Hellman group and passing a correctly sized, but zeroed Diffie Hellamn value. mpi_cmp_ui() was detecting this if the second parameter was 0, but 1 is passed from dh_is_pubkey_valid(). This causes the null pointer u->d to be dereferenced towards the end of mpi_cmp_ui()

Severity

7.5 (High)


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

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/fde791e8a96a64ea7…
https://git.kernel.org/stable/c/ae63e84ffda74267b…
https://git.kernel.org/stable/c/61f5453e9706e9971…
https://git.kernel.org/stable/c/0fc7147c694394f8a…
https://git.kernel.org/stable/c/67589d247909043e9…
https://git.kernel.org/stable/c/d3ad023a39f1127dc…
https://git.kernel.org/stable/c/12ac013ad7ff0df06…
https://git.kernel.org/stable/c/9e47a758b70167c93…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < fde791e8a96a64ea7b0ad2440e43586447a209c6 (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < ae63e84ffda74267bf7277c38415ba38389229a0 (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < 61f5453e9706e99713825594e0c8f9031485fb5f (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < 0fc7147c694394f8a8cbc19570c6bc918cac0906 (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < 67589d247909043e94d2dd5fb590958e0f99d58d (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < d3ad023a39f1127dcfd331c562673355dc078650 (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < 12ac013ad7ff0df066451e825801d805095b3776 (git) Affected: 12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5 , < 9e47a758b70167c9301d2b44d2569f86c7796f2d (git)
Linux	Linux	Affected: 3.7 Unaffected: 0 , < 3.7 (semver) Unaffected: 4.14.326 , ≤ 4.14.* (semver) Unaffected: 4.19.295 , ≤ 4.19.* (semver) Unaffected: 5.4.257 , ≤ 5.4.* (semver) Unaffected: 5.10.197 , ≤ 5.10.* (semver) Unaffected: 5.15.133 , ≤ 5.15.* (semver) Unaffected: 6.1.55 , ≤ 6.1.* (semver) Unaffected: 6.5.5 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "lib/crypto/mpi/mpi-cmp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fde791e8a96a64ea7b0ad2440e43586447a209c6",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "ae63e84ffda74267bf7277c38415ba38389229a0",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "61f5453e9706e99713825594e0c8f9031485fb5f",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "0fc7147c694394f8a8cbc19570c6bc918cac0906",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "67589d247909043e94d2dd5fb590958e0f99d58d",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "d3ad023a39f1127dcfd331c562673355dc078650",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "12ac013ad7ff0df066451e825801d805095b3776",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            },
            {
              "lessThan": "9e47a758b70167c9301d2b44d2569f86c7796f2d",
              "status": "affected",
              "version": "12f008b6dc5ff1c822fdb2198d20e3dbdc92f3f5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "lib/crypto/mpi/mpi-cmp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.7"
            },
            {
              "lessThan": "3.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.133",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.326",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.295",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.257",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.197",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.133",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.55",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.5",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "3.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()\n\nDuring NVMeTCP Authentication a controller can trigger a kernel\noops by specifying the 8192 bit Diffie Hellman group and passing\na correctly sized, but zeroed Diffie Hellamn value.\nmpi_cmp_ui() was detecting this if the second parameter was 0,\nbut 1 is passed from dh_is_pubkey_valid(). This causes the null\npointer u-\u003ed to be dereferenced towards the end of mpi_cmp_ui()"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is reached from NVMe-over-Fabrics (NVMe/TCP) DH-HMAC-CHAP authentication data received from a remote peer \u2014 either a malicious/MITM controller sending a Challenge to a host, or a remote initiator sending a Reply to an nvmet-tcp target on TCP/4420. The attacker-controlled bytes travel over the network with no locality requirement.\nAC:L - Triggering is fully deterministic: the attacker simply advertises a non-NULL DH group (e.g. ffdhe8192) and supplies a correctly sized but all-zero DH value, which makes mpi_read_raw_from_sgl() produce an MPI with nlimbs==0 and d==NULL. No race, no memory-layout dependency, and NVMe/TCP in-band authentication is a normal shipped configuration.\nPR:N - On the target side nvmet_auth_reply() computes the DH shared secret from the peer\u0027s DH value before the DH-HMAC-CHAP response HMAC is verified, so this is a pre-authentication code path; on the host side an impersonating/MITM controller needs no credentials to send the Challenge.\nUI:N - An nvmet-tcp target listens passively and the attacker drives the whole DH-HMAC-CHAP exchange; no local user action is required to trigger the oops.\nS:U - The NULL dereference crashes the kernel that is processing the authentication message; the impact stays within that kernel\u0027s own security authority with no boundary crossing.\nC:N - The fault is a read of address 0 (u-\u003ed[0]) that immediately oopses; no attacker-influenced memory is read back or returned to the peer, so no information is disclosed.\nI:N - The bug is a NULL pointer read, not a write or type confusion; nothing is corrupted and there is no primitive for modifying kernel memory or hijacking control flow.\nA:H - Dereferencing the NULL u-\u003ed produces a kernel oops in the NVMe auth work handler, killing the connection/worker and panicking the box under panic_on_oops, and it can be re-triggered on every new authentication attempt."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:16:11.527Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fde791e8a96a64ea7b0ad2440e43586447a209c6"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae63e84ffda74267bf7277c38415ba38389229a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/61f5453e9706e99713825594e0c8f9031485fb5f"
        },
        {
          "url": "https://git.kernel.org/stable/c/0fc7147c694394f8a8cbc19570c6bc918cac0906"
        },
        {
          "url": "https://git.kernel.org/stable/c/67589d247909043e94d2dd5fb590958e0f99d58d"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3ad023a39f1127dcfd331c562673355dc078650"
        },
        {
          "url": "https://git.kernel.org/stable/c/12ac013ad7ff0df066451e825801d805095b3776"
        },
        {
          "url": "https://git.kernel.org/stable/c/9e47a758b70167c9301d2b44d2569f86c7796f2d"
        }
      ],
      "title": "crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53817",
    "datePublished": "2025-12-09T00:01:15.411Z",
    "dateReserved": "2025-12-08T23:58:35.277Z",
    "dateUpdated": "2026-08-05T09:16:11.527Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.