Описание
NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 in GitHub repository vim/vim prior to 8.2.4938. NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 allows attackers to cause a denial of service (application crash) via a crafted input.
A NULL pointer dereference flaw was found in vim's vim_regexec_string() function in regexp.c file. The issue occurs when the function tries to match the buffer with an invalid pattern. This flaw allows an attacker to trick a user into opening a specially crafted file, triggering a NULL pointer dereference that causes an application to crash, leading to a denial of service.
Отчет
All versions of Vim shipped with Red Hat Enterprise Linux are not affected, because no vulnerable code is present in our code-base. Red Hat Enterprise Virtualization 4 consumes RHEL-8 vim, and as RHEL-8 is not affected, Hence, RHEV is also not affected. Red Hat Product Security has rated this issue as having a Low-security impact because the "victim" has to run an untrusted file IN SCRIPT MODE. Someone who is running untrusted files in script mode is equivalent to someone just taking a random python script and running it. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Меры по смягчению последствий
Untrusted vim scripts with -s [scriptin] are not recommended to run.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | vim | Not affected | ||
| Red Hat Enterprise Linux 7 | vim | Not affected | ||
| Red Hat Enterprise Linux 8 | vim | Not affected | ||
| Red Hat Enterprise Linux 9 | vim | Affected | ||
| Red Hat Virtualization 4 | vim | Not affected |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 in GitHub repository vim/vim prior to 8.2.4938. NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 allows attackers to cause a denial of service (application crash) via a crafted input.
NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 in GitHub repository vim/vim prior to 8.2.4938. NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 allows attackers to cause a denial of service (application crash) via a crafted input.
NULL Pointer Dereference in function vim_regexec_string at regexp.c:27 ...
NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 in GitHub repository vim/vim prior to 8.2.4938. NULL Pointer Dereference in function vim_regexec_string at regexp.c:2733 allows attackers to cause a denial of service (application crash) via a crafted input.
EPSS
5.5 Medium
CVSS3