Vulnerability-Lookup

BDU:2021-00364

Vulnerability from fstec - Published: 26.01.2021

Title

Уязвимость функции parse_args() программы системного администрирования Sudo, позволяющая нарушителю повысить свои привилегии до уровня root

Description

Уязвимость функции parse_args() программы системного администрирования Sudo связана с переполнением буфера в динамической памяти. Эксплуатация уязвимости может позволить нарушителю повысить свои привилегии до уровня root

Severity ?


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

Vendor

Canonical Ltd., Red Hat Inc., ООО «РусБИТех-Астра», Сообщество свободного программного обеспечения, ООО «Ред Софт», Fedora Project, Todd C. Miller, ООО «Юбитех», АО «ИВК», АО "НППКТ", АО «Концерн ВНИИНС», АО «НТЦ ИТ РОСА»

Software Name

Ubuntu, Red Hat Enterprise Linux, Astra Linux Special Edition (запись в едином реестре российских программ №369), Red Hat Virtualization, Astra Linux Common Edition (запись в едином реестре российских программ №4433), Debian GNU/Linux, РЕД ОС (запись в едином реестре российских программ №3751), Astra Linux Special Edition для «Эльбрус» (запись в едином реестре российских программ №11156), Fedora, Sudo, UBLinux (запись в едином реестре российских программ №6874), Альт 8 СП (запись в едином реестре российских программ №4305), ОСОН ОСнова Оnyx (запись в едином реестре российских программ №5913), ОС ОН «Стрелец» (запись в едином реестре российских программ №6177), ROSA Virtualization 3.0 (запись в едином реестре российских программ №21308)

Software Version

12.04 (Ubuntu), 7 (Red Hat Enterprise Linux), 16.04 LTS (Ubuntu), 1.5 «Смоленск» (Astra Linux Special Edition), 18.04 LTS (Ubuntu), 1.6 «Смоленск» (Astra Linux Special Edition), 4 (Red Hat Virtualization), 2.12 «Орёл» (Astra Linux Common Edition), 8 (Red Hat Enterprise Linux), 14.04 ESM (Ubuntu), 10 (Debian GNU/Linux), 7.2 Муром (РЕД ОС), 7.6 Extended Update Support (Red Hat Enterprise Linux), 7.2 Advanced Update Support (Red Hat Enterprise Linux), 8.1 «Ленинград» (Astra Linux Special Edition для «Эльбрус»), 7.4 US for SAP Solutions (Red Hat Enterprise Linux), 7.3 Advanced Update Support (Red Hat Enterprise Linux), 32 (Fedora), 7.4 Telco Extended Update Support (Red Hat Enterprise Linux), 7.4 Advanced Update Support (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 20.10 (Ubuntu), 8.1 Extended Update Support (Red Hat Enterprise Linux), 7.7 Extended Update Support (Red Hat Enterprise Linux), 33 (Fedora), 8.2 Extended Update Support (Red Hat Enterprise Linux), 6 Extended Lifecycle Support (Red Hat Enterprise Linux), до 1.9.5p2 (Sudo), 21.1 (UBLinux), 2102 (UBLinux), - (Альт 8 СП), до 2.1 (ОСОН ОСнова Оnyx), до 16.01.2023 (ОС ОН «Стрелец»), 3.0 (ROSA Virtualization 3.0)

Possible Mitigations

Использование рекомендаций: Для Sudo: https://www.sudo.ws/stable.html#1.9.5p2 Для Ubuntu: https://ubuntu.com/security/notices/USN-4705-1 https://ubuntu.com/security/notices/USN-4705-2 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/cve-2021-3156 https://bugzilla.redhat.com/show_bug.cgi?id=1917684 Для Debian GNU/Linux: https://www.debian.org/security/2021/dsa-4839 Для Fedora: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ Для Ред ОС: https://redos.red-soft.ru/updatesec/ Для UBLinux: https://security.ublinux.ru/ASA-202101-25/generate Для Astra Linux: Обновление программного обеспечения (пакета sudo) до 1.8.19p1-2.1+deb9u3 или более поздней версии Или использование рекомендаций производителя: https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16 https://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81 Для ОС ОН «Стрелец»: Обновление программного обеспечения sudo до версии 1.8.27-1+deb10u3.strelets2 Для ОС Альт 8 СП: установка обновления из публичного репозитория программного средства Для программной системы управления средой виртуализации с подсистемой безагентного резервного копирования виртуальных машин «ROSA Virtualization 3.0»: https://abf.rosa.ru/advisories/ROSA-SA-2025-2719

Reference

http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html http://seclists.org/fulldisclosure/2021/Jan/79 http://www.openwall.com/lists/oss-security/2021/01/26/3 http://www.openwall.com/lists/oss-security/2021/02/15/1 https://access.redhat.com/security/cve/cve-2021-3156 https://bugzilla.redhat.com/show_bug.cgi?id=1917684 https://itnan.ru/post.php?c=1&p=539526 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/ https://nvd.nist.gov/vuln/detail/CVE-2021-3156 https://redos.red-soft.ru/updatesec/ https://security.ublinux.ru/ASA-202101-25/generate https://security-tracker.debian.org/tracker/CVE-2021-3156 https://ubuntu.com/security/notices/USN-4705-1 https://ubuntu.com/security/notices/USN-4705-2 https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210128SE16MD https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability https://www.debian.org/security/2021/dsa-4839 https://www.opennet.ru/opennews/art.shtml?num=54474 https://www.openwall.com/lists/oss-security/2021/01/26/3 https://www.sudo.ws/stable.html#1.9.5p2 https://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81 https://поддержка.нппкт.рф/bin/view/ОСнова/Обновления/2.1/ https://strelets.net/patchi-i-obnovleniya-bezopasnosti#16012023 https://altsp.su/obnovleniya-bezopasnosti/ https://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv https://abf.rosa.ru/advisories/ROSA-SA-2025-2719

CWE

CWE-122, CWE-193

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:N/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": "Canonical Ltd., Red Hat Inc., \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \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\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb, Fedora Project, Todd C. Miller, \u041e\u041e\u041e \u00ab\u042e\u0431\u0438\u0442\u0435\u0445\u00bb, \u0410\u041e \u00ab\u0418\u0412\u041a\u00bb, \u0410\u041e \"\u041d\u041f\u041f\u041a\u0422\", \u0410\u041e \u00ab\u041a\u043e\u043d\u0446\u0435\u0440\u043d \u0412\u041d\u0418\u0418\u041d\u0421\u00bb, \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "12.04 (Ubuntu), 7 (Red Hat Enterprise Linux), 16.04 LTS (Ubuntu), 1.5 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Special Edition), 18.04 LTS (Ubuntu), 1.6 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Special Edition), 4 (Red Hat Virtualization), 2.12 \u00ab\u041e\u0440\u0451\u043b\u00bb (Astra Linux Common Edition), 8 (Red Hat Enterprise Linux), 14.04 ESM (Ubuntu), 10 (Debian GNU/Linux), 7.2 \u041c\u0443\u0440\u043e\u043c (\u0420\u0415\u0414 \u041e\u0421), 7.6 Extended Update Support (Red Hat Enterprise Linux), 7.2 Advanced Update Support (Red Hat Enterprise Linux), 8.1 \u00ab\u041b\u0435\u043d\u0438\u043d\u0433\u0440\u0430\u0434\u00bb (Astra Linux Special Edition \u0434\u043b\u044f \u00ab\u042d\u043b\u044c\u0431\u0440\u0443\u0441\u00bb), 7.4 US for SAP Solutions (Red Hat Enterprise Linux), 7.3 Advanced Update Support (Red Hat Enterprise Linux), 32 (Fedora), 7.4 Telco Extended Update Support (Red Hat Enterprise Linux), 7.4 Advanced Update Support (Red Hat Enterprise Linux), 20.04 LTS (Ubuntu), 20.10 (Ubuntu), 8.1 Extended Update Support (Red Hat Enterprise Linux), 7.7 Extended Update Support (Red Hat Enterprise Linux), 33 (Fedora), 8.2 Extended Update Support (Red Hat Enterprise Linux), 6 Extended Lifecycle Support (Red Hat Enterprise Linux), \u0434\u043e 1.9.5p2 (Sudo), 21.1 (UBLinux), 2102 (UBLinux), - (\u0410\u043b\u044c\u0442 8 \u0421\u041f), \u0434\u043e 2.1 (\u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx), \u0434\u043e 16.01.2023 (\u041e\u0421 \u041e\u041d \u00ab\u0421\u0442\u0440\u0435\u043b\u0435\u0446\u00bb), 3.0 (ROSA Virtualization 3.0)",
  "\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 Sudo:\nhttps://www.sudo.ws/stable.html#1.9.5p2\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/notices/USN-4705-1\nhttps://ubuntu.com/security/notices/USN-4705-2\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/cve-2021-3156\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1917684\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://www.debian.org/security/2021/dsa-4839\n\n\u0414\u043b\u044f Fedora:\nhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/\nhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/\n\n\u0414\u043b\u044f \u0420\u0435\u0434 \u041e\u0421:\nhttps://redos.red-soft.ru/updatesec/\n\n\u0414\u043b\u044f UBLinux:\nhttps://security.ublinux.ru/ASA-202101-25/generate\n\n\u0414\u043b\u044f Astra Linux:\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 (\u043f\u0430\u043a\u0435\u0442\u0430 sudo) \u0434\u043e 1.8.19p1-2.1+deb9u3 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\n\u0418\u043b\u0438 \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:\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16\nhttps://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81\n\n\u0414\u043b\u044f \u041e\u0421 \u041e\u041d \u00ab\u0421\u0442\u0440\u0435\u043b\u0435\u0446\u00bb:\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 sudo \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 1.8.27-1+deb10u3.strelets2\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\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0440\u0435\u0434\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u043e\u0439 \u0431\u0435\u0437\u0430\u0433\u0435\u043d\u0442\u043d\u043e\u0433\u043e \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d \u00abROSA Virtualization 3.0\u00bb: https://abf.rosa.ru/advisories/ROSA-SA-2025-2719",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "26.01.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "19.03.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "28.01.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-00364",
  "\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-2021-3156",
  "\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, 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), Red Hat Virtualization, Astra Linux Common 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 \u21164433), 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), Astra Linux Special Edition \u0434\u043b\u044f \u00ab\u042d\u043b\u044c\u0431\u0440\u0443\u0441\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 \u211611156), Fedora, Sudo, UBLinux (\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 \u21166874), \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), \u041e\u0421 \u041e\u041d \u00ab\u0421\u0442\u0440\u0435\u043b\u0435\u0446\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 \u21166177), ROSA Virtualization 3.0 (\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 \u211621308)",
  "\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 12.04 32-bit, Red Hat Inc. Red Hat Enterprise Linux 7 IA-32, Canonical Ltd. Ubuntu 16.04 LTS 32-bit, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.5 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb 64-bit (\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), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.5 \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), Red Hat Inc. Red Hat Enterprise Linux 7 , Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 12.04 , Canonical Ltd. Ubuntu 18.04 LTS , \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), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Common Edition 2.12 \u00ab\u041e\u0440\u0451\u043b\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 \u21164433), Red Hat Inc. Red Hat Enterprise Linux 8 , Canonical Ltd. Ubuntu 14.04 ESM , \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 , \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.2 \u041c\u0443\u0440\u043e\u043c  (\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), Red Hat Inc. Red Hat Enterprise Linux 7.6 Extended Update Support , Red Hat Inc. Red Hat Enterprise Linux 7.2 Advanced Update Support , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition \u0434\u043b\u044f \u00ab\u042d\u043b\u044c\u0431\u0440\u0443\u0441\u00bb 8.1 \u00ab\u041b\u0435\u043d\u0438\u043d\u0433\u0440\u0430\u0434\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 \u211611156), Red Hat Inc. Red Hat Enterprise Linux 7.4 US for SAP Solutions , Red Hat Inc. Red Hat Enterprise Linux 7.3 Advanced Update Support , Fedora Project Fedora 32 , Red Hat Inc. Red Hat Enterprise Linux 7.4 Telco Extended Update Support , Red Hat Inc. Red Hat Enterprise Linux 7.4 Advanced Update Support , Canonical Ltd. Ubuntu 20.04 LTS , Canonical Ltd. Ubuntu 20.10 , Red Hat Inc. Red Hat Enterprise Linux 8.1 Extended Update Support , Red Hat Inc. Red Hat Enterprise Linux 7.7 Extended Update Support , Fedora Project Fedora 33 , Red Hat Inc. Red Hat Enterprise Linux 8.2 Extended Update Support , Red Hat Inc. Red Hat Enterprise Linux 6 Extended Lifecycle Support , \u041e\u041e\u041e \u00ab\u042e\u0431\u0438\u0442\u0435\u0445\u00bb UBLinux 21.1  (\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 \u21166874), \u041e\u041e\u041e \u00ab\u042e\u0431\u0438\u0442\u0435\u0445\u00bb UBLinux 2102  (\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 \u21166874), \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), \u0410\u041e \"\u041d\u041f\u041f\u041a\u0422\" \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx \u0434\u043e 2.1  (\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), \u0410\u041e \u00ab\u041a\u043e\u043d\u0446\u0435\u0440\u043d \u0412\u041d\u0418\u0418\u041d\u0421\u00bb \u041e\u0421 \u041e\u041d \u00ab\u0421\u0442\u0440\u0435\u043b\u0435\u0446\u00bb \u0434\u043e 16.01.2023  (\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 \u21166177), \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb ROSA Virtualization 3.0 3.0  (\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 \u211621308)",
  "\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 parse_args() \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0433\u043e \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f Sudo, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0434\u043e \u0443\u0440\u043e\u0432\u043d\u044f root",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 (CWE-122), \u041e\u0448\u0438\u0431\u043a\u0430 \u0435\u0434\u0438\u043d\u0438\u0447\u043d\u043e\u0433\u043e \u0441\u043c\u0435\u0449\u0435\u043d\u0438\u044f (CWE-193)",
  "\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 parse_args() \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0433\u043e \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f Sudo \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\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 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0434\u043e \u0443\u0440\u043e\u0432\u043d\u044f root",
  "\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",
  "\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": "http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html\nhttp://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html\nhttp://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html\nhttp://seclists.org/fulldisclosure/2021/Jan/79\nhttp://www.openwall.com/lists/oss-security/2021/01/26/3\nhttp://www.openwall.com/lists/oss-security/2021/02/15/1\nhttps://access.redhat.com/security/cve/cve-2021-3156\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1917684\nhttps://itnan.ru/post.php?c=1\u0026p=539526\nhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/\nhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3156\nhttps://redos.red-soft.ru/updatesec/\nhttps://security.ublinux.ru/ASA-202101-25/generate\nhttps://security-tracker.debian.org/tracker/CVE-2021-3156\nhttps://ubuntu.com/security/notices/USN-4705-1\nhttps://ubuntu.com/security/notices/USN-4705-2\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20210128SE16MD\nhttps://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16\nhttps://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability\nhttps://www.debian.org/security/2021/dsa-4839\nhttps://www.opennet.ru/opennews/art.shtml?num=54474\nhttps://www.openwall.com/lists/oss-security/2021/01/26/3\nhttps://www.sudo.ws/stable.html#1.9.5p2\nhttps://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81\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/2.1/\nhttps://strelets.net/patchi-i-obnovleniya-bezopasnosti#16012023\nhttps://altsp.su/obnovleniya-bezopasnosti/\nhttps://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv\nhttps://abf.rosa.ru/advisories/ROSA-SA-2025-2719",
  "\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, \u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438/\u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430, \u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-122, CWE-193",
  "\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-2021-3156 (GCVE-0-2021-3156)

Vulnerability from cvelistv5 – Published: 2021-01-26 00:00 – Updated: 2025-10-21 23:35

Summary

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

Severity ?

7.8 (High)


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

CWE

Assigner

mitre

References

URL

Tags

	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	http://seclists.org/fulldisclosure/2021/Jan/79	mailing-list
	http://www.openwall.com/lists/oss-security/2021/01/26/3	mailing-list
	https://security.gentoo.org/glsa/202101-33	vendor-advisory
	https://www.debian.org/security/2021/dsa-4839	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	http://www.openwall.com/lists/oss-security/2021/01/27/1	mailing-list
	http://www.openwall.com/lists/oss-security/2021/01/27/2	mailing-list
	https://tools.cisco.com/security/center/content/C…	vendor-advisory
	https://www.kb.cert.org/vuls/id/794544	third-party-advisory
	http://seclists.org/fulldisclosure/2021/Feb/42	mailing-list
	http://www.openwall.com/lists/oss-security/2021/02/15/1	mailing-list
	https://www.oracle.com//security-alerts/cpujul2021.html
	https://www.sudo.ws/stable.html#1.9.5p2
	https://www.openwall.com/lists/oss-security/2021/…
	http://packetstormsecurity.com/files/161160/Sudo-…
	https://security.netapp.com/advisory/ntap-2021012…
	https://security.netapp.com/advisory/ntap-2021012…
	http://packetstormsecurity.com/files/161230/Sudo-…
	http://packetstormsecurity.com/files/161270/Sudo-…
	http://packetstormsecurity.com/files/161293/Sudo-…
	https://support.apple.com/kb/HT212177
	https://kc.mcafee.com/corporate/index?page=conten…
	https://www.beyondtrust.com/blog/entry/security-a…
	https://www.synology.com/security/advisory/Synolo…
	http://www.openwall.com/lists/oss-security/2021/09/14/2	mailing-list
	https://www.oracle.com/security-alerts/cpuoct2021.html
	https://www.oracle.com/security-alerts/cpuapr2022.html
	http://www.openwall.com/lists/oss-security/2024/01/30/8	mailing-list
	http://www.openwall.com/lists/oss-security/2024/01/30/6	mailing-list
	http://packetstormsecurity.com/files/176932/glibc…
	http://seclists.org/fulldisclosure/2024/Feb/3	mailing-list
	https://www.vicarius.io/vsociety/posts/sudoedit-p…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:45:51.408Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[debian-lts-announce] 20210126 [SECURITY] [DLA 2534-1] sudo security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html"
          },
          {
            "name": "20210126 Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2021/Jan/79"
          },
          {
            "name": "[oss-security] 20210126 Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/01/26/3"
          },
          {
            "name": "GLSA-202101-33",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202101-33"
          },
          {
            "name": "DSA-4839",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4839"
          },
          {
            "name": "FEDORA-2021-2cb63d912a",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/"
          },
          {
            "name": "FEDORA-2021-8840cbdccd",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/"
          },
          {
            "name": "[oss-security] 20210127 Re: Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/01/27/1"
          },
          {
            "name": "[oss-security] 20210127 Re: Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/01/27/2"
          },
          {
            "name": "20210129 Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM"
          },
          {
            "name": "VU#794544",
            "tags": [
              "third-party-advisory",
              "x_transferred"
            ],
            "url": "https://www.kb.cert.org/vuls/id/794544"
          },
          {
            "name": "20210211 APPLE-SA-2021-02-09-1 macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2021/Feb/42"
          },
          {
            "name": "[oss-security] 20210215 Re: sudo: Ineffective NO_ROOT_MAILER and Baron Samedit",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/02/15/1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.sudo.ws/stable.html#1.9.5p2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2021/01/26/3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210128-0002/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210128-0001/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT212177"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10348"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.synology.com/security/advisory/Synology_SA_21_02"
          },
          {
            "name": "[oss-security] 20210914 Re: Oracle Solaris membership in the distros list",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/09/14/2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          },
          {
            "name": "[oss-security] 20240130 Re: CVE-2023-6246: Heap-based buffer overflow in the glibc\u0027s syslog()",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/01/30/8"
          },
          {
            "name": "[oss-security] 20240130 CVE-2023-6246: Heap-based buffer overflow in the glibc\u0027s syslog()",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/01/30/6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html"
          },
          {
            "name": "20240204 CVE-2023-6246: Heap-based buffer overflow in the glibc\u0027s syslog()",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2024/Feb/3"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-3156",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-03T15:43:52.658146Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-04-06",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-3156"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-193",
                "description": "CWE-193 Off-by-one Error",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:35:29.600Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-3156"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2022-04-06T00:00:00.000Z",
            "value": "CVE-2021-3156 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via \"sudoedit -s\" and a command-line argument that ends with a single backslash character."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-09-18T16:41:27.031Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[debian-lts-announce] 20210126 [SECURITY] [DLA 2534-1] sudo security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html"
        },
        {
          "name": "20210126 Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2021/Jan/79"
        },
        {
          "name": "[oss-security] 20210126 Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/01/26/3"
        },
        {
          "name": "GLSA-202101-33",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202101-33"
        },
        {
          "name": "DSA-4839",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4839"
        },
        {
          "name": "FEDORA-2021-2cb63d912a",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/"
        },
        {
          "name": "FEDORA-2021-8840cbdccd",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/"
        },
        {
          "name": "[oss-security] 20210127 Re: Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/01/27/1"
        },
        {
          "name": "[oss-security] 20210127 Re: Baron Samedit: Heap-based buffer overflow in Sudo (CVE-2021-3156)",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/01/27/2"
        },
        {
          "name": "20210129 Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM"
        },
        {
          "name": "VU#794544",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.kb.cert.org/vuls/id/794544"
        },
        {
          "name": "20210211 APPLE-SA-2021-02-09-1 macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2021/Feb/42"
        },
        {
          "name": "[oss-security] 20210215 Re: sudo: Ineffective NO_ROOT_MAILER and Baron Samedit",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/02/15/1"
        },
        {
          "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
        },
        {
          "url": "https://www.sudo.ws/stable.html#1.9.5p2"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2021/01/26/3"
        },
        {
          "url": "http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20210128-0002/"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20210128-0001/"
        },
        {
          "url": "http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html"
        },
        {
          "url": "http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html"
        },
        {
          "url": "http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html"
        },
        {
          "url": "https://support.apple.com/kb/HT212177"
        },
        {
          "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10348"
        },
        {
          "url": "https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability"
        },
        {
          "url": "https://www.synology.com/security/advisory/Synology_SA_21_02"
        },
        {
          "name": "[oss-security] 20210914 Re: Oracle Solaris membership in the distros list",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/09/14/2"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
        },
        {
          "name": "[oss-security] 20240130 Re: CVE-2023-6246: Heap-based buffer overflow in the glibc\u0027s syslog()",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/01/30/8"
        },
        {
          "name": "[oss-security] 20240130 CVE-2023-6246: Heap-based buffer overflow in the glibc\u0027s syslog()",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/01/30/6"
        },
        {
          "url": "http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html"
        },
        {
          "name": "20240204 CVE-2023-6246: Heap-based buffer overflow in the glibc\u0027s syslog()",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2024/Feb/3"
        },
        {
          "url": "https://www.vicarius.io/vsociety/posts/sudoedit-pwned-cve-2021-3156"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-3156",
    "datePublished": "2021-01-26T00:00:00.000Z",
    "dateReserved": "2021-01-15T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:35:29.600Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

BDU:2021-00364

CVE-2021-3156 (GCVE-0-2021-3156)

Tags

Sightings

Nomenclature