Vulnerability-Lookup

BDU:2025-06245 (CVE-2023-52977)

Vulnerability from fstec – Published: 2025-06-02 – Updated: 2026-02-17 – View on bdu.fstec.ru Fixed

Title

Уязвимость функций ovs_flow_cmd_new() и kfree_skb() ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функций ovs_flow_cmd_new() и kfree_skb() ядра операционной системы Linux связана с отсутствием освобождения памяти. 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

Resource exhaustion

Incidents

Being clarified

Remediation

Software update

CWE

CWE-401 - Неправильное освобождение памяти перед удалением последней ссылки («утечка памяти»)

Aliases

CVE-2023-52977, ROS-20250528-01

References

11 references

URL
https://redos.red-soft.ru/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti…
https://git.kernel.org/stable/c/1ac653cf886cdfc082708c82dc6ac6115cebd2ee
https://git.kernel.org/stable/c/af4e720bc00a2653f7b9df21755b9978b3d7f386
https://git.kernel.org/stable/c/ed6c5e8caf55778500202775167e8ccdb1a030cb
https://git.kernel.org/stable/c/70154489f531587996f3e9d7cceeee65cff0001d
https://git.kernel.org/stable/c/f423c2efd51d7eb1d143c2be7eea233241d9bbbf
https://git.kernel.org/stable/c/70d40674a549d498bd63d5432acf46205da1534b
https://git.kernel.org/stable/c/0c598aed445eb45b0ee7ba405f7ece99ee349c30
https://access.redhat.com/security/cve/CVE-2023-52977
https://security-tracker.debian.org/tracker/CVE-2023-52977
https://ubuntu.com/security/CVE-2023-52977

Impacted products

6 products from 6 vendors

Vendors

Canonical Ltd., Red Hat, Inc., Сообщество свободного программного обеспечения, ООО «Ред Софт», АО «СберТех»

Products

Ubuntu, Red Hat Enterprise Linux, Debian GNU/Linux, РЕД ОС (запись в едином реестре российских программ №3751), Linux, Platform V SberLinux OS Server (запись в едином реестре российских программ №18785)

Versions

18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 7.3 (РЕД ОС), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), до 4.9.337 (Linux), до 6.0.16 (Linux), от 4.19.0 до 4.19.273 (Linux), от 5.10.0 до 5.10.168 (Linux), от 5.15.0 до 5.15.93 (Linux), от 5.4.0 до 5.4.232 (Linux), от 6.1.0 до 6.1.11 (Linux), от 4.14.0 до 4.14.329 (Linux), 9.2.0-fstec (Platform V SberLinux OS Server)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 18.04 LTS, Red Hat, Inc. Red Hat Enterprise Linux 8, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), Canonical Ltd. Ubuntu 22.04 LTS, Inc. Red Hat Enterprise Linux 9, Сообщество свободного программного обеспечения Linux до 4.9.337, Сообщество свободного программного обеспечения Linux до 6.0.16, Сообщество свободного программного обеспечения Linux от 4.19.0 до 4.19.273, Сообщество свободного программного обеспечения Linux от 5.10.0 до 5.10.168, Сообщество свободного программного обеспечения Linux от 5.15.0 до 5.15.93, Сообщество свободного программного обеспечения Linux от 5.4.0 до 5.4.232, Сообщество свободного программного обеспечения Linux от 6.1.0 до 6.1.11, Сообщество свободного программного обеспечения Linux от 4.14.0 до 4.14.329, АО «СберТех» Platform V SberLinux OS Server 9.2.0-fstec (запись в едином реестре российских программ №18785)

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://git.kernel.org/stable/c/1ac653cf886cdfc082708c82dc6ac6115cebd2ee https://git.kernel.org/stable/c/af4e720bc00a2653f7b9df21755b9978b3d7f386 https://git.kernel.org/stable/c/ed6c5e8caf55778500202775167e8ccdb1a030cb https://git.kernel.org/stable/c/70154489f531587996f3e9d7cceeee65cff0001d https://git.kernel.org/stable/c/f423c2efd51d7eb1d143c2be7eea233241d9bbbf https://git.kernel.org/stable/c/70d40674a549d498bd63d5432acf46205da1534b https://git.kernel.org/stable/c/0c598aed445eb45b0ee7ba405f7ece99ee349c30 Для РедОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/ Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2023-52977 Для программных продуктов Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-52977 Для программных продуктов Ubuntu: https://ubuntu.com/security/CVE-2023-52977 Компенсирующие меры: - минимизация пользовательских привилегий; - отключение/удаление неиспользуемых учётных записей пользователей; - контроль журналов аудита кластера для отслеживания попыток эксплуатации уязвимости.

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,
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  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "18.04 LTS (Ubuntu), 8 (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 7.3 (\u0420\u0415\u0414 \u041e\u0421), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), \u0434\u043e 4.9.337 (Linux), \u0434\u043e 6.0.16 (Linux), \u043e\u0442 4.19.0 \u0434\u043e 4.19.273 (Linux), \u043e\u0442 5.10.0 \u0434\u043e 5.10.168 (Linux), \u043e\u0442 5.15.0 \u0434\u043e 5.15.93 (Linux), \u043e\u0442 5.4.0 \u0434\u043e 5.4.232 (Linux), \u043e\u0442 6.1.0 \u0434\u043e 6.1.11 (Linux), \u043e\u0442 4.14.0 \u0434\u043e 4.14.329 (Linux), 9.2.0-fstec (Platform V SberLinux OS Server)",
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  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "02.02.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "17.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "02.06.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-06245",
  "\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-2023-52977, ROS-20250528-01",
  "\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": "Ubuntu, Red Hat Enterprise Linux, Debian GNU/Linux, \u0420\u0415\u0414 \u041e\u0421 (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), Linux, Platform V SberLinux OS Server (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u211618785)",
  "\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": "Canonical Ltd. Ubuntu 18.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 8 , Canonical Ltd. Ubuntu 20.04 LTS , \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 , \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.3  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), Canonical Ltd. Ubuntu 22.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9 , \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 \u0434\u043e 4.9.337 , \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 \u0434\u043e 6.0.16 , \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 4.19.0 \u0434\u043e 4.19.273 , \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 5.10.0 \u0434\u043e 5.10.168 , \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 5.15.0 \u0434\u043e 5.15.93 , \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 5.4.0 \u0434\u043e 5.4.232 , \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 6.1.0 \u0434\u043e 6.1.11 , \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 Linux \u043e\u0442 4.14.0 \u0434\u043e 4.14.329 , \u0410\u041e \u00ab\u0421\u0431\u0435\u0440\u0422\u0435\u0445\u00bb Platform V SberLinux OS Server 9.2.0-fstec  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u211618785)",
  "\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\u0439 ovs_flow_cmd_new() \u0438 kfree_skb() \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": "\u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0435\u0440\u0435\u0434 \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u0435\u043c \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0439 \u0441\u0441\u044b\u043b\u043a\u0438 (\u00ab\u0443\u0442\u0435\u0447\u043a\u0430 \u043f\u0430\u043c\u044f\u0442\u0438\u00bb) (CWE-401)",
  "\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\u0439 ovs_flow_cmd_new() \u0438 kfree_skb() \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 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438. \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": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://redos.red-soft.ru/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-kernel-lt-280525/?sphrase_id=1000202\nhttps://git.kernel.org/stable/c/1ac653cf886cdfc082708c82dc6ac6115cebd2ee\nhttps://git.kernel.org/stable/c/af4e720bc00a2653f7b9df21755b9978b3d7f386\nhttps://git.kernel.org/stable/c/ed6c5e8caf55778500202775167e8ccdb1a030cb\nhttps://git.kernel.org/stable/c/70154489f531587996f3e9d7cceeee65cff0001d\nhttps://git.kernel.org/stable/c/f423c2efd51d7eb1d143c2be7eea233241d9bbbf\nhttps://git.kernel.org/stable/c/70d40674a549d498bd63d5432acf46205da1534b\nhttps://git.kernel.org/stable/c/0c598aed445eb45b0ee7ba405f7ece99ee349c30\nhttps://access.redhat.com/security/cve/CVE-2023-52977\nhttps://security-tracker.debian.org/tracker/CVE-2023-52977\nhttps://ubuntu.com/security/CVE-2023-52977\n",
  "\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-401",
  "\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-2023-52977 (GCVE-0-2023-52977)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2026-05-23 15:27

Title

net: openvswitch: fix flow memory leak in ovs_flow_cmd_new

Summary

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix flow memory leak in ovs_flow_cmd_new Syzkaller reports a memory leak of new_flow in ovs_flow_cmd_new() as it is not freed when an allocation of a key fails. BUG: memory leak unreferenced object 0xffff888116668000 (size 632): comm "syz-executor231", pid 1090, jiffies 4294844701 (age 18.871s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000defa3494>] kmem_cache_zalloc include/linux/slab.h:654 [inline] [<00000000defa3494>] ovs_flow_alloc+0x19/0x180 net/openvswitch/flow_table.c:77 [<00000000c67d8873>] ovs_flow_cmd_new+0x1de/0xd40 net/openvswitch/datapath.c:957 [<0000000010a539a8>] genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739 [<00000000dff3302d>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] [<00000000dff3302d>] genl_rcv_msg+0x328/0x590 net/netlink/genetlink.c:800 [<000000000286dd87>] netlink_rcv_skb+0x153/0x430 net/netlink/af_netlink.c:2515 [<0000000061fed410>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 [<000000009dc0f111>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] [<000000009dc0f111>] netlink_unicast+0x545/0x7f0 net/netlink/af_netlink.c:1339 [<000000004a5ee816>] netlink_sendmsg+0x8e7/0xde0 net/netlink/af_netlink.c:1934 [<00000000482b476f>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000482b476f>] sock_sendmsg+0x152/0x190 net/socket.c:671 [<00000000698574ba>] ____sys_sendmsg+0x70a/0x870 net/socket.c:2356 [<00000000d28d9e11>] ___sys_sendmsg+0xf3/0x170 net/socket.c:2410 [<0000000083ba9120>] __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 [<00000000c00628f8>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46 [<000000004abfdcf4>] entry_SYSCALL_64_after_hwframe+0x61/0xc6 To fix this the patch rearranges the goto labels to reflect the order of object allocations and adds appropriate goto statements on the error paths. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 17:21 UTC

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/1ac653cf886cdfc08…
https://git.kernel.org/stable/c/af4e720bc00a2653f…
https://git.kernel.org/stable/c/ed6c5e8caf5577850…
https://git.kernel.org/stable/c/70154489f53158799…
https://git.kernel.org/stable/c/f423c2efd51d7eb1d…
https://git.kernel.org/stable/c/70d40674a549d498b…
https://git.kernel.org/stable/c/0c598aed445eb45b0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 655e873bf528f0f46ce6b069f9a2daee9621197c , < 1ac653cf886cdfc082708c82dc6ac6115cebd2ee (git) Affected: ee27d70556a47c3a07e65a60f47e3ea12a255af8 , < af4e720bc00a2653f7b9df21755b9978b3d7f386 (git) Affected: 8b74211bf60b3e0c0ed4fe3d16c92ffdcaaf34eb , < ed6c5e8caf55778500202775167e8ccdb1a030cb (git) Affected: 6736b61ecf230dd656464de0f514bdeadb384f20 , < 70154489f531587996f3e9d7cceeee65cff0001d (git) Affected: 0133615a06007684df648feb9d327714e399afd4 , < f423c2efd51d7eb1d143c2be7eea233241d9bbbf (git) Affected: 32d5fa5bdccec2361fc6c4ed05a7367155b3a1e9 , < 70d40674a549d498bd63d5432acf46205da1534b (git) Affected: 68bb10101e6b0a6bb44e9c908ef795fc4af99eae , < 0c598aed445eb45b0ee7ba405f7ece99ee349c30 (git) Affected: 4f592e712ea2132f511d545954867d7880df5be2 (git) Affected: a991a411c3e21ef22507400dbb179ae02029d42c (git) Affected: 4.9.337 , < 4.10 (semver) Affected: 6.0.16 , < 6.1 (semver)
Linux	Linux	Affected: 4.14.303 , < 4.14.306 (semver) Affected: 4.19.270 , < 4.19.273 (semver) Affected: 5.4.229 , < 5.4.232 (semver) Affected: 5.10.163 , < 5.10.168 (semver) Affected: 5.15.86 , < 5.15.93 (semver) Affected: 6.1.2 , < 6.1.11 (semver)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-52977",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T17:21:57.463878Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-401",
                "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T17:21:59.721Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/openvswitch/datapath.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1ac653cf886cdfc082708c82dc6ac6115cebd2ee",
              "status": "affected",
              "version": "655e873bf528f0f46ce6b069f9a2daee9621197c",
              "versionType": "git"
            },
            {
              "lessThan": "af4e720bc00a2653f7b9df21755b9978b3d7f386",
              "status": "affected",
              "version": "ee27d70556a47c3a07e65a60f47e3ea12a255af8",
              "versionType": "git"
            },
            {
              "lessThan": "ed6c5e8caf55778500202775167e8ccdb1a030cb",
              "status": "affected",
              "version": "8b74211bf60b3e0c0ed4fe3d16c92ffdcaaf34eb",
              "versionType": "git"
            },
            {
              "lessThan": "70154489f531587996f3e9d7cceeee65cff0001d",
              "status": "affected",
              "version": "6736b61ecf230dd656464de0f514bdeadb384f20",
              "versionType": "git"
            },
            {
              "lessThan": "f423c2efd51d7eb1d143c2be7eea233241d9bbbf",
              "status": "affected",
              "version": "0133615a06007684df648feb9d327714e399afd4",
              "versionType": "git"
            },
            {
              "lessThan": "70d40674a549d498bd63d5432acf46205da1534b",
              "status": "affected",
              "version": "32d5fa5bdccec2361fc6c4ed05a7367155b3a1e9",
              "versionType": "git"
            },
            {
              "lessThan": "0c598aed445eb45b0ee7ba405f7ece99ee349c30",
              "status": "affected",
              "version": "68bb10101e6b0a6bb44e9c908ef795fc4af99eae",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4f592e712ea2132f511d545954867d7880df5be2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a991a411c3e21ef22507400dbb179ae02029d42c",
              "versionType": "git"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.337",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1",
              "status": "affected",
              "version": "6.0.16",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/openvswitch/datapath.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4.14.306",
              "status": "affected",
              "version": "4.14.303",
              "versionType": "semver"
            },
            {
              "lessThan": "4.19.273",
              "status": "affected",
              "version": "4.19.270",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4.232",
              "status": "affected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.168",
              "status": "affected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.93",
              "status": "affected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.11",
              "status": "affected",
              "version": "6.1.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.306",
                  "versionStartIncluding": "4.14.303",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.273",
                  "versionStartIncluding": "4.19.270",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.232",
                  "versionStartIncluding": "5.4.229",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.168",
                  "versionStartIncluding": "5.10.163",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.93",
                  "versionStartIncluding": "5.15.86",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.11",
                  "versionStartIncluding": "6.1.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.9.337",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.0.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix flow memory leak in ovs_flow_cmd_new\n\nSyzkaller reports a memory leak of new_flow in ovs_flow_cmd_new() as it is\nnot freed when an allocation of a key fails.\n\nBUG: memory leak\nunreferenced object 0xffff888116668000 (size 632):\n  comm \"syz-executor231\", pid 1090, jiffies 4294844701 (age 18.871s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003c00000000defa3494\u003e] kmem_cache_zalloc include/linux/slab.h:654 [inline]\n    [\u003c00000000defa3494\u003e] ovs_flow_alloc+0x19/0x180 net/openvswitch/flow_table.c:77\n    [\u003c00000000c67d8873\u003e] ovs_flow_cmd_new+0x1de/0xd40 net/openvswitch/datapath.c:957\n    [\u003c0000000010a539a8\u003e] genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739\n    [\u003c00000000dff3302d\u003e] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n    [\u003c00000000dff3302d\u003e] genl_rcv_msg+0x328/0x590 net/netlink/genetlink.c:800\n    [\u003c000000000286dd87\u003e] netlink_rcv_skb+0x153/0x430 net/netlink/af_netlink.c:2515\n    [\u003c0000000061fed410\u003e] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\n    [\u003c000000009dc0f111\u003e] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]\n    [\u003c000000009dc0f111\u003e] netlink_unicast+0x545/0x7f0 net/netlink/af_netlink.c:1339\n    [\u003c000000004a5ee816\u003e] netlink_sendmsg+0x8e7/0xde0 net/netlink/af_netlink.c:1934\n    [\u003c00000000482b476f\u003e] sock_sendmsg_nosec net/socket.c:651 [inline]\n    [\u003c00000000482b476f\u003e] sock_sendmsg+0x152/0x190 net/socket.c:671\n    [\u003c00000000698574ba\u003e] ____sys_sendmsg+0x70a/0x870 net/socket.c:2356\n    [\u003c00000000d28d9e11\u003e] ___sys_sendmsg+0xf3/0x170 net/socket.c:2410\n    [\u003c0000000083ba9120\u003e] __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439\n    [\u003c00000000c00628f8\u003e] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46\n    [\u003c000000004abfdcf4\u003e] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nTo fix this the patch rearranges the goto labels to reflect the order of\nobject allocations and adds appropriate goto statements on the error\npaths.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:27:39.583Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1ac653cf886cdfc082708c82dc6ac6115cebd2ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/af4e720bc00a2653f7b9df21755b9978b3d7f386"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed6c5e8caf55778500202775167e8ccdb1a030cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/70154489f531587996f3e9d7cceeee65cff0001d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f423c2efd51d7eb1d143c2be7eea233241d9bbbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/70d40674a549d498bd63d5432acf46205da1534b"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c598aed445eb45b0ee7ba405f7ece99ee349c30"
        }
      ],
      "title": "net: openvswitch: fix flow memory leak in ovs_flow_cmd_new",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52977",
    "datePublished": "2025-03-27T16:43:17.234Z",
    "dateReserved": "2025-03-27T16:40:15.738Z",
    "dateUpdated": "2026-05-23T15:27:39.583Z",
    "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.