Vulnerability-Lookup

BDU:2024-04570 (CVE-2021-47571)

Vulnerability from fstec – Published: 2024-06-17 – Updated: 2024-06-17 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции _rtl92e_pci_disconnect() драйвера беспроводного адаптера RealTek RTL8192E ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Summary

Уязвимость функции _rtl92e_pci_disconnect() в модуле drivers/staging/rtl8192e/rtl8192e/rtl_core.c драйвера беспроводного адаптера RealTek RTL8192E ядра операционной системы Linux связана с повторным использованием ранее освобожденной памяти. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Severity

6.8 (Medium) CVSS 2.0


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

7.8 (High) CVSS 3.0


                      
                        CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-416 - Использование после освобождения

Aliases

CVE-2021-47571

References

18 references

URL
https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594
https://www.cve.org/CVERecord?id=CVE-2021-47571
https://lore.kernel.org/linux-cve-announce/2024052454-CVE-2021-47571-05b5@gregkh/
https://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.294
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.292
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.257
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.219
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.163
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.83
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.6

Impacted products

1 product from 1 vendor

Vendors

Сообщество свободного программного обеспечения

Products

Linux

Versions

от 4.0 до 4.4.293 включительно (Linux), от 4.5 до 4.9.291 включительно (Linux), от 4.10 до 4.14.256 включительно (Linux), от 5.5 до 5.10.82 включительно (Linux), от 4.15 до 4.19.218 включительно (Linux), от 4.20 до 5.4.162 включительно (Linux), от 5.11 до 5.15.5 включительно (Linux)

Product types

Operating system

Platforms

Сообщество свободного программного обеспечения Linux от 4.0 до 4.4.293 включительно, Сообщество свободного программного обеспечения Linux от 4.5 до 4.9.291 включительно, Сообщество свободного программного обеспечения Linux от 4.10 до 4.14.256 включительно, Сообщество свободного программного обеспечения Linux от 5.5 до 5.10.82 включительно, Сообщество свободного программного обеспечения Linux от 4.15 до 4.19.218 включительно, Сообщество свободного программного обеспечения Linux от 4.20 до 5.4.162 включительно, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.5 включительно

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6 https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4 https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64 https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82 https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443 https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594 https://lore.kernel.org/linux-cve-announce/2024052454-CVE-2021-47571-05b5@gregkh/ https://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.294 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.292 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.257 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.219 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.163 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.83 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.6

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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": "\u043e\u0442 4.0 \u0434\u043e 4.4.293 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.5 \u0434\u043e 4.9.291 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.256 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.5 \u0434\u043e 5.10.82 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.218 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.162 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.5 \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": "\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\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b\nhttps://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6\nhttps://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef\nhttps://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4\nhttps://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64\nhttps://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82\nhttps://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443\nhttps://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594\nhttps://lore.kernel.org/linux-cve-announce/2024052454-CVE-2021-47571-05b5@gregkh/\nhttps://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.294\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.292\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.257\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.219\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.163\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.83\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.6",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "17.11.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "17.06.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "17.06.2024",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2024-04570",
  "\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-2021-47571",
  "\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": "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 Linux \u043e\u0442 4.0 \u0434\u043e 4.4.293 \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 4.5 \u0434\u043e 4.9.291 \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 4.10 \u0434\u043e 4.14.256 \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 5.5 \u0434\u043e 5.10.82 \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 4.19.218 \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 4.20 \u0434\u043e 5.4.162 \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 5.15.5 \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 _rtl92e_pci_disconnect() \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0433\u043e \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u0430 RealTek RTL8192E \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 \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\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": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416)",
  "\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 _rtl92e_pci_disconnect() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 drivers/staging/rtl8192e/rtl8192e/rtl_core.c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0433\u043e \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u0430 RealTek RTL8192E \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 \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u044b\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0440\u0430\u043d\u0435\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u043d\u043e\u0439 \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 \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\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://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b\nhttps://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6\nhttps://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef\nhttps://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4\nhttps://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64\nhttps://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82\nhttps://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443\nhttps://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594\nhttps://www.cve.org/CVERecord?id=CVE-2021-47571\nhttps://lore.kernel.org/linux-cve-announce/2024052454-CVE-2021-47571-05b5@gregkh/\nhttps://git.kernel.org/linus/b535917c51acc97fb0761b1edec85f1f3d02bda4\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.294\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.292\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.257\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.219\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.163\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.83\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.6",
  "\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-416",
  "\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 6,8)\n\u0412\u044b\u0441\u043e\u043a\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 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)"
}

CVE-2021-47571 (GCVE-0-2021-47571)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:12 – Updated: 2026-05-11 13:57

Title

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

Summary

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-24 19:15 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/d43aecb694b10db9a…
https://git.kernel.org/stable/c/9186680382934b0e7…
https://git.kernel.org/stable/c/c0ef0e75a858cbd86…
https://git.kernel.org/stable/c/bca19bb2dc2d89ce6…
https://git.kernel.org/stable/c/2e1ec01af2c7139c6…
https://git.kernel.org/stable/c/8d0163cec7de995f9…
https://git.kernel.org/stable/c/e27ee2f607fe6a9b9…
https://git.kernel.org/stable/c/b535917c51acc97fb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < d43aecb694b10db9a4228ce2d38b5ae8de374443 (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < 9186680382934b0e7529d3d70dcc0a21d087683b (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < c0ef0e75a858cbd8618b473f22fbca36106dcf82 (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < 2e1ec01af2c7139c6a600bbfaea1a018b35094b6 (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < 8d0163cec7de995f9eb9c3128c83fb84f0cb1c64 (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < e27ee2f607fe6a9b923ef1fc65461c0613c97594 (git) Affected: 66898177e7e5486dc77a4ba742efa4e2e9e900a4 , < b535917c51acc97fb0761b1edec85f1f3d02bda4 (git)
Linux	Linux	Affected: 3.2 Unaffected: 0 , < 3.2 (semver) Unaffected: 4.4.294 , ≤ 4.4.* (semver) Unaffected: 4.9.292 , ≤ 4.9.* (semver) Unaffected: 4.14.257 , ≤ 4.14.* (semver) Unaffected: 4.19.219 , ≤ 4.19.* (semver) Unaffected: 5.4.163 , ≤ 5.4.* (semver) Unaffected: 5.10.83 , ≤ 5.10.* (semver) Unaffected: 5.15.6 , ≤ 5.15.* (semver) Unaffected: 5.16 , ≤ * (original_commit_for_fix)

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{
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                "role": "CISA Coordinator",
                "timestamp": "2024-05-24T19:15:02.697856Z",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()\n\nThe free_rtllib() function frees the \"dev\" pointer so there is use\nafter free on the next line.  Re-arrange things to avoid that."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T13:57:11.972Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443"
        },
        {
          "url": "https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82"
        },
        {
          "url": "https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64"
        },
        {
          "url": "https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594"
        },
        {
          "url": "https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4"
        }
      ],
      "title": "staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47571",
    "datePublished": "2024-05-24T15:12:57.732Z",
    "dateReserved": "2024-05-24T15:11:00.729Z",
    "dateUpdated": "2026-05-11T13:57:11.972Z",
    "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.