Vulnerability-Lookup

BDU:2024-00107 (CVE-2023-51767)

Vulnerability from fstec – Published: 2024-01-10 – Updated: 2026-06-01 – View on bdu.fstec.ru Exploit publicly available Fixed

Title

Уязвимость функции mm_answer_authpassword() cредства криптографической защиты OpenSSH, позволяющая нарушителю реализовать атаку Rowhammer и обойти процедуру аутентификации

Summary

Уязвимость функции mm_answer_authpassword() cредства криптографической защиты OpenSSH связана с недостатками процедуры аутентификации в результате выхода операции за границы буфера в памяти при искажении битов. Эксплуатация уязвимости может позволить нарушителю реализовать атаку Rowhammer и обойти процедуру аутентификации

Severity

6.0 (Medium) CVSS 2.0


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

7.0 (High) CVSS 3.0


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

Class

Architecture vulnerability

Status

Confirmed by the vendor

Exploitation

Authentication bypass

Incidents

Being clarified

Remediation

Software update

CWE

CWE-287 - Неправильная аутентификация

Aliases

CVE-2023-51767

References

9 references

URL
https://arxiv.org/abs/2309.02545
https://bugzilla.redhat.com/show_bug.cgi?id=2255850
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076f…
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076f…
https://vuldb.com/?id.248943
https://access.redhat.com/security/cve/cve-2023-51767
https://security-tracker.debian.org/tracker/CVE-2023-51767
https://groups.google.com/g/linux.debian.bugs.dist/c/vcBj57_jMRU
https://abf.rosa.ru/advisories/ROSA-SA-2025-3079

Impacted products

4 products from 5 vendors

Vendors

Red Hat, Inc., Сообщество свободного программного обеспечения, The OpenBSD Project, АО «НТЦ ИТ РОСА»

Products

Red Hat Enterprise Linux, Debian GNU/Linux, OpenSSH, ROSA Virtualization 3.0 (запись в едином реестре российских программ №21308)

Versions

8 (Red Hat Enterprise Linux), 10 (Debian GNU/Linux), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 9 (Red Hat Enterprise Linux), до 9.6 включительно (OpenSSH), 3.0 (ROSA Virtualization 3.0)

Product types

Operating system, Security software, Virtualization software

Platforms

Red Hat, Inc. Red Hat Enterprise Linux 8, Сообщество свободного программного обеспечения Debian GNU/Linux 10, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, Inc. Red Hat Enterprise Linux 9, АО «НТЦ ИТ РОСА» ROSA Virtualization 3.0 3.0 (запись в едином реестре российских программ №21308)

Mitigations

Компенсирующие меры: 1. Рекомендуется использовать механизм обновления целевой строки (Target Row Refresh (TRR)) или ввести более частое обновление памяти с интервалами обновления короче обычных 64 мс; 2. Рекомендуется использовать дополнительные модули для предотвращения переворотов битов: ABACuS, который использует один общий счетчик активации строк для отслеживания активаций строк с одинаковым адресом строки: https://github.com/CMU-SAFARI/ABACuS для операционных систем на базе ядра Linux рекомендуется загрузить модуль ANVIL, который использует счётчики производительности Intel (performance counters) для обнаружения активности, связанной с проведением в системе атаки RowHammer, и реализует метод защиты потенциально атакуемых строк DRAM через выборочное их обновление для исключения потери заряда. Использование рекомендаций: Для openssh: https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77 https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2023-51767 Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2023-51767 Для программной системы управления средой виртуализации с подсистемой безагентного резервного копирования виртуальных машин «ROSA Virtualization 3.0»: https://abf.rosa.ru/advisories/ROSA-SA-2025-3079

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:H/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:H/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": "Red Hat, Inc., \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, The OpenBSD Project, \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "8 (Red Hat Enterprise Linux), 10 (Debian GNU/Linux), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 9 (Red Hat Enterprise Linux), \u0434\u043e 9.6 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (OpenSSH), 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": "\u041a\u043e\u043c\u043f\u0435\u043d\u0441\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0440\u044b:\n1. \u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0438 (Target Row Refresh (TRR)) \u0438\u043b\u0438 \u0432\u0432\u0435\u0441\u0442\u0438 \u0431\u043e\u043b\u0435\u0435 \u0447\u0430\u0441\u0442\u043e\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0430\u043c\u044f\u0442\u0438 \u0441 \u0438\u043d\u0442\u0435\u0440\u0432\u0430\u043b\u0430\u043c\u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u0440\u043e\u0447\u0435 \u043e\u0431\u044b\u0447\u043d\u044b\u0445 64 \u043c\u0441;\n2. \u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043c\u043e\u0434\u0443\u043b\u0438 \u0434\u043b\u044f \u043f\u0440\u0435\u0434\u043e\u0442\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043f\u0435\u0440\u0435\u0432\u043e\u0440\u043e\u0442\u043e\u0432 \u0431\u0438\u0442\u043e\u0432:\nABACuS, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u043e\u0434\u0438\u043d \u043e\u0431\u0449\u0438\u0439 \u0441\u0447\u0435\u0442\u0447\u0438\u043a \u0430\u043a\u0442\u0438\u0432\u0430\u0446\u0438\u0438 \u0441\u0442\u0440\u043e\u043a \u0434\u043b\u044f \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u0430\u043a\u0442\u0438\u0432\u0430\u0446\u0438\u0439 \u0441\u0442\u0440\u043e\u043a \u0441 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u043c \u0430\u0434\u0440\u0435\u0441\u043e\u043c \u0441\u0442\u0440\u043e\u043a\u0438:\nhttps://github.com/CMU-SAFARI/ABACuS\n\u0434\u043b\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043d\u0430 \u0431\u0430\u0437\u0435 \u044f\u0434\u0440\u0430 Linux \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c \u043c\u043e\u0434\u0443\u043b\u044c ANVIL, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0441\u0447\u0451\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 Intel (performance counters) \u0434\u043b\u044f \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u0439 \u0441 \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0435\u043c \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0430\u0442\u0430\u043a\u0438 RowHammer, \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u0435\u0442 \u043c\u0435\u0442\u043e\u0434 \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0430\u0442\u0430\u043a\u0443\u0435\u043c\u044b\u0445 \u0441\u0442\u0440\u043e\u043a DRAM \u0447\u0435\u0440\u0435\u0437 \u0432\u044b\u0431\u043e\u0440\u043e\u0447\u043d\u043e\u0435 \u0438\u0445 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0442\u0435\u0440\u0438 \u0437\u0430\u0440\u044f\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 openssh:\nhttps://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77\nhttps://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2023-51767\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-2023-51767\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-2025-3079",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "24.12.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "01.06.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "10.01.2024",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2024-00107",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2023-51767",
  "\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 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Red Hat Enterprise Linux, Debian GNU/Linux, OpenSSH, 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": "Red Hat, Inc. Red Hat Enterprise 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 Debian GNU/Linux 11 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 12 , Red Hat, Inc. Red Hat Enterprise Linux 9 , \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 mm_answer_authpassword() c\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b OpenSSH, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0430\u0442\u0430\u043a\u0443 Rowhammer \u0438 \u043e\u0431\u043e\u0439\u0442\u0438 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u0443 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438",
  "\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": "\u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0430\u044f \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f (CWE-287)",
  "\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 mm_answer_authpassword() c\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b OpenSSH \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u0430\u043c\u0438 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u044b \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0432\u044b\u0445\u043e\u0434\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u0438 \u0438\u0441\u043a\u0430\u0436\u0435\u043d\u0438\u0438 \u0431\u0438\u0442\u043e\u0432. \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 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0430\u0442\u0430\u043a\u0443 Rowhammer \u0438 \u043e\u0431\u043e\u0439\u0442\u0438 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u0443 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\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": "\u041d\u0430\u0440\u0443\u0448\u0435\u043d\u0438\u0435 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://arxiv.org/abs/2309.02545 \nhttps://bugzilla.redhat.com/show_bug.cgi?id=2255850 \nhttps://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77 \nhttps://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878\nhttps://vuldb.com/?id.248943\nhttps://access.redhat.com/security/cve/cve-2023-51767\nhttps://security-tracker.debian.org/tracker/CVE-2023-51767\nhttps://groups.google.com/g/linux.debian.bugs.dist/c/vcBj57_jMRU\nhttps://abf.rosa.ru/advisories/ROSA-SA-2025-3079",
  "\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\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b, \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",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-287",
  "\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)\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)"
}

CVE-2023-51767 (GCVE-0-2023-51767)

Vulnerability from cvelistv5 – Published: 2023-12-24 00:00 – Updated: 2026-06-02 15:08 Disputed

Summary

OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states "we do not consider it to be the application's responsibility to defend against platform architectural weaknesses."

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-02 15:08 UTC

CWE

n/a
NVD-CWE-Other

Assigner

mitre mitre root

References

34 references

URL	Tags
https://arxiv.org/abs/2309.02545
https://github.com/openssh/openssh-portable/blob/…
https://github.com/openssh/openssh-portable/blob/…
https://bugzilla.redhat.com/show_bug.cgi?id=2255850
https://access.redhat.com/security/cve/CVE-2023-51767
https://ubuntu.com/security/CVE-2023-51767
https://security.netapp.com/advisory/ntap-2024012…
https://www.openwall.com/lists/oss-security/2025/…
http://www.openwall.com/lists/oss-security/2025/10/01/1
http://www.openwall.com/lists/oss-security/2025/09/22/1
http://www.openwall.com/lists/oss-security/2025/09/24/4
http://www.openwall.com/lists/oss-security/2025/09/22/2
http://www.openwall.com/lists/oss-security/2025/09/23/4
http://www.openwall.com/lists/oss-security/2025/10/01/2
http://www.openwall.com/lists/oss-security/2025/09/26/2
http://www.openwall.com/lists/oss-security/2025/09/26/4
http://www.openwall.com/lists/oss-security/2025/09/27/1
http://www.openwall.com/lists/oss-security/2025/09/27/2
http://www.openwall.com/lists/oss-security/2025/09/27/3
http://www.openwall.com/lists/oss-security/2025/09/27/5
http://www.openwall.com/lists/oss-security/2025/09/27/6
http://www.openwall.com/lists/oss-security/2025/09/27/7
http://www.openwall.com/lists/oss-security/2025/09/29/4
http://www.openwall.com/lists/oss-security/2025/09/29/5
http://www.openwall.com/lists/oss-security/2025/09/23/1
http://www.openwall.com/lists/oss-security/2025/09/29/6
http://www.openwall.com/lists/oss-security/2025/09/23/3
http://www.openwall.com/lists/oss-security/2025/09/23/5
http://www.openwall.com/lists/oss-security/2025/09/24/7
http://www.openwall.com/lists/oss-security/2025/09/25/2
http://www.openwall.com/lists/oss-security/2025/09/25/6
http://www.openwall.com/lists/oss-security/2025/09/27/4
http://www.openwall.com/lists/oss-security/2025/09/28/7
http://www.openwall.com/lists/oss-security/2025/09/29/1

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-18T22:03:38.917Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://arxiv.org/abs/2309.02545"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255850"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2023-51767"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ubuntu.com/security/CVE-2023-51767"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240125-0006/"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/01/1"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/22/1"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/24/4"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/22/2"
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            "url": "http://www.openwall.com/lists/oss-security/2025/09/23/4"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/01/2"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/26/2"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/26/4"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/1"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/2"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/3"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/5"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/6"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/7"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/29/4"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/29/5"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/23/1"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/29/6"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/23/3"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/23/5"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/24/7"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/25/2"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/25/6"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/27/4"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/28/7"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/09/29/1"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-51767",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-02T15:08:29.899238Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "NVD-CWE-Other",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-02T15:08:45.809Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states \"we do not consider it to be the application\u0027s responsibility to defend against platform architectural weaknesses.\""
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-22T16:42:44.854Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://arxiv.org/abs/2309.02545"
        },
        {
          "url": "https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878"
        },
        {
          "url": "https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255850"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2023-51767"
        },
        {
          "url": "https://ubuntu.com/security/CVE-2023-51767"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240125-0006/"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2025/09/22/1"
        }
      ],
      "tags": [
        "disputed"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-51767",
    "datePublished": "2023-12-24T00:00:00.000Z",
    "dateReserved": "2023-12-24T00:00:00.000Z",
    "dateUpdated": "2026-06-02T15:08:45.809Z",
    "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.