Vulnerability-Lookup

BDU:2021-03412 (CVE-2020-4788)

Vulnerability from fstec – Published: 2021-07-06 – Updated: 2025-01-29 – View on bdu.fstec.ru Fixed

Title

Уязвимость ядра операционной системы Linux, связанная с раскрытием информации, позволяющая нарушителю получить доступ к конфиденциальным данным

Summary

Уязвимость ядра операционной системы Linux связана с раскрытием информации. Эксплуатация уязвимости позволяет нарушителю получить доступ к конфиденциальным данным

Severity

1.9 (Low) CVSS 2.0


                      
                        AV:L/AC:M/Au:N/C:P/I:N/A:N

4.7 (Medium) CVSS 3.0


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Information gathering

Incidents

Being clarified

Remediation

Software update

CWE

CWE-200 - Раскрытие информации

Aliases

CVE-2020-4788

References

26 references

URL
https://altsp.su/obnovleniya-bezopasnosti/
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899573
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4788
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d…
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.159
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.245
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.79
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.10
https://lore.kernel.org/linuxppc-dev/20201119231333.361771-1-dja@axtens.net/T/#…
https://nvd.nist.gov/vuln/detail/CVE-2020-4788
https://security-tracker.debian.org/tracker/CVE-2020-4788
https://ubuntu.com/security/notices/USN-4657-1
https://ubuntu.com/security/notices/USN-4658-1
https://ubuntu.com/security/notices/USN-4659-1
https://ubuntu.com/security/notices/USN-4660-1
https://ubuntu.com/security/notices/USN-4681-1
https://usn.ubuntu.com/usn/usn-4657-1
https://usn.ubuntu.com/usn/usn-4658-1
https://usn.ubuntu.com/usn/usn-4659-1
https://usn.ubuntu.com/usn/usn-4660-1
https://usn.ubuntu.com/usn/usn-4681-1
https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16
https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16
https://www.cve.org/CVERecord?id=CVE-2020-4788
https://поддержка.нппкт.рф/bin/view/ОСнова/Обновления/2.4/

Impacted products

5 products from 4 vendors

Vendors

Сообщество свободного программного обеспечения, ООО «РусБИТех-Астра», АО «ИВК», АО «НППКТ»

Products

Debian GNU/Linux, Astra Linux Special Edition (запись в едином реестре российских программ №369), Альт 8 СП (запись в едином реестре российских программ №4305), ОСОН ОСнова Оnyx (запись в едином реестре российских программ №5913), Linux

Versions

9 (Debian GNU/Linux), 1.6 «Смоленск» (Astra Linux Special Edition), 8 (Debian GNU/Linux), 10 (Debian GNU/Linux), - (Альт 8 СП), до 2.4 (ОСОН ОСнова Оnyx), от 4.0 до 4.9.244 включительно (Linux), от 4.10 до 4.19.158 включительно (Linux), от 4.20 до 5.10 (Linux)

Product types

Operating system

Platforms

Сообщество свободного программного обеспечения Debian GNU/Linux 9, ООО «РусБИТех-Астра» Astra Linux Special Edition 1.6 «Смоленск» (запись в едином реестре российских программ №369), Сообщество свободного программного обеспечения Debian GNU/Linux 8, Сообщество свободного программного обеспечения Debian GNU/Linux 10, Сообщество свободного программного обеспечения Linux до 5.9.10, АО «ИВК» Альт 8 СП - (запись в едином реестре российских программ №4305)

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://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.159 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.245 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.79 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.10 Для ОС Debian: использование рекомендаций производителя: https://security-tracker.debian.org/tracker/CVE-2020-4788 Для ОС Astra Linux: использование рекомендаций производителя: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16 Для ОСОН Основа: Обновление программного обеспечения linux до версии 5.14.9-2.osnova179.1 Для ОС Альт 8 СП: установка обновления из публичного репозитория программного средства

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:M/Au:N/C:P/I:N/A:N",
  "CVSS 3.0": "AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
  "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, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \u0410\u041e \u00ab\u0418\u0412\u041a\u00bb, \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "9 (Debian GNU/Linux), 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Special Edition), 8 (Debian GNU/Linux), 10 (Debian GNU/Linux), - (\u0410\u043b\u044c\u0442 8 \u0421\u041f), \u0434\u043e 2.4 (\u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx), \u043e\u0442 4.0 \u0434\u043e 4.9.244 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.19.158 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.10 (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\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://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.159\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.245\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.79\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.10\n\n\u0414\u043b\u044f \u041e\u0421 Debian:\n\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://security-tracker.debian.org/tracker/CVE-2020-4788\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16\n\n\u0414\u043b\u044f \u041e\u0421\u041e\u041d \u041e\u0441\u043d\u043e\u0432\u0430:\n\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 linux \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 5.14.9-2.osnova179.1\n\n\u0414\u043b\u044f \u041e\u0421 \u0410\u043b\u044c\u0442 8 \u0421\u041f: \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0437 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "20.11.2020",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "29.01.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "06.07.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-03412",
  "\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-2020-4788",
  "\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, Astra Linux Special Edition (\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 \u2116369), \u0410\u043b\u044c\u0442 8 \u0421\u041f (\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 \u21164305), \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx (\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 \u21165913), 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 9 , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb  (\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 \u2116369), \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 8 , \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 10 , \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 5.9.10 , \u0410\u041e \u00ab\u0418\u0412\u041a\u00bb \u0410\u043b\u044c\u0442 8 \u0421\u041f -  (\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 \u21164305)",
  "\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 \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\u043d\u0430\u044f \u0441 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435\u043c \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u043c \u0434\u0430\u043d\u043d\u044b\u043c",
  "\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\u0441\u043a\u0440\u044b\u0442\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 (CWE-200)",
  "\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 \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\u0441\u043a\u0440\u044b\u0442\u0438\u0435\u043c \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u043c \u0434\u0430\u043d\u043d\u044b\u043c",
  "\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": "\u041d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://altsp.su/obnovleniya-bezopasnosti/\nhttps://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899573\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4788\nhttps://exchange.xforce.ibmcloud.com/vulnerabilities/189296\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dda3f4252e6c8b833a2ef164afd3da9808d0f07c\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.159\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.245\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.79\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.10\nhttps://lore.kernel.org/linuxppc-dev/20201119231333.361771-1-dja@axtens.net/T/#me4f6a44748747e3327d27cd95200bf7a87486ffc\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-4788\nhttps://security-tracker.debian.org/tracker/CVE-2020-4788\nhttps://ubuntu.com/security/notices/USN-4657-1\nhttps://ubuntu.com/security/notices/USN-4658-1\nhttps://ubuntu.com/security/notices/USN-4659-1\nhttps://ubuntu.com/security/notices/USN-4660-1\nhttps://ubuntu.com/security/notices/USN-4681-1\nhttps://usn.ubuntu.com/usn/usn-4657-1\nhttps://usn.ubuntu.com/usn/usn-4658-1\nhttps://usn.ubuntu.com/usn/usn-4659-1\nhttps://usn.ubuntu.com/usn/usn-4660-1\nhttps://usn.ubuntu.com/usn/usn-4681-1\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16\nhttps://www.cve.org/CVERecord?id=CVE-2020-4788\nhttps://\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430.\u043d\u043f\u043f\u043a\u0442.\u0440\u0444/bin/view/\u041e\u0421\u043d\u043e\u0432\u0430/\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f/2.4/",
  "\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-200",
  "\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": "\u041d\u0438\u0437\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 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 1,9)\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 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,7)\n\u041d\u0435\u0442 \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u043e\u0446\u0435\u043d\u043a\u0430 CVSS 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 0)"
}

CVE-2020-4788 (GCVE-0-2020-4788)

Vulnerability from cvelistv5 – Published: 2020-11-20 03:45 – Updated: 2024-09-16 19:05

Summary

IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.

Severity

5.1 (Medium)


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

CWE

Obtain Information

Assigner

ibm mitre root

References

7 references

URL	Tags
https://www.ibm.com/support/pages/node/6370729	x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF
http://www.openwall.com/lists/oss-security/2020/11/20/3	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2020/11/23/1	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
IBM	VIOS	Affected: 3.1
IBM	AIX	Affected: 7.1 Affected: 7.2

Date Public

2020-11-19 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:14:57.937Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.ibm.com/support/pages/node/6370729"
          },
          {
            "name": "ibm-i-cve20204788-info-disc (189296)",
            "tags": [
              "vdb-entry",
              "x_refsource_XF",
              "x_transferred"
            ],
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/189296"
          },
          {
            "name": "[oss-security] 20201120 CVE-2020-4788: Speculation on incompletely validated data on IBM Power9",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/11/20/3"
          },
          {
            "name": "[oss-security] 20201123 Re: CVE-2020-4788: Speculation on incompletely validated data on IBM Power9",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/11/23/1"
          },
          {
            "name": "FEDORA-2020-4700a73bd5",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/"
          },
          {
            "name": "FEDORA-2020-8c15928d23",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "VIOS",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "3.1"
            }
          ]
        },
        {
          "product": "AIX",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "status": "affected",
              "version": "7.2"
            }
          ]
        }
      ],
      "datePublic": "2020-11-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 4.5,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/PR:N/C:H/AV:L/AC:H/S:U/A:N/I:N/UI:N/E:U/RC:C/RL:O",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Obtain Information",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-07-25T16:22:49.000Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
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          ],
          "url": "https://www.ibm.com/support/pages/node/6370729"
        },
        {
          "name": "ibm-i-cve20204788-info-disc (189296)",
          "tags": [
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            "x_refsource_XF"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/189296"
        },
        {
          "name": "[oss-security] 20201120 CVE-2020-4788: Speculation on incompletely validated data on IBM Power9",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/11/20/3"
        },
        {
          "name": "[oss-security] 20201123 Re: CVE-2020-4788: Speculation on incompletely validated data on IBM Power9",
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          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/11/23/1"
        },
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          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/"
        },
        {
          "name": "FEDORA-2020-8c15928d23",
          "tags": [
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            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "psirt@us.ibm.com",
          "DATE_PUBLIC": "2020-11-19T00:00:00",
          "ID": "CVE-2020-4788",
          "STATE": "PUBLIC"
        },
        "affects": {
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                      }
                    },
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              "I": "N",
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              "S": "U",
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              "RC": "C",
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            },
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              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/"
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    "assignerShortName": "ibm",
    "cveId": "CVE-2020-4788",
    "datePublished": "2020-11-20T03:45:13.599Z",
    "dateReserved": "2019-12-30T00:00:00.000Z",
    "dateUpdated": "2024-09-16T19:05:08.453Z",
    "state": "PUBLISHED"
  },
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}

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.

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.

Action not permitted

BDU:2021-03412 (CVE-2020-4788)

CVE-2020-4788 (GCVE-0-2020-4788)

Tags

Sightings

Nomenclature

Related by attack behaviour