CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: ntfs3: reject direct userspace writes to reserved $LX* xattrs NTFS3 uses $LXUID, $LXGID, $LXMOD and $LXDEV as internal WSL permission metadata and reloads them into i_uid, i_gid and i_mode from ntfs_get_wsl_perm(). Because the empty-prefix xattr handler also lets file owners call setxattr() on these names directly, an unprivileged writer on a writable ntfs3 mount can plant root ownership and S_ISUID on their own file and gain euid 0 after inode reload. Reject direct userspace writes to the reserved $LX* names. Internal ntfs3 metadata updates are unchanged because ntfs_save_wsl_perm() writes them via ntfs_set_ea() directly. [[email protected]: added an additional check for non privileged users]
Засегнати продукти
- Linux Linux: be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди e574af95234afc3c725988bbc1fdeb46b9f386a4; be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди 2c3cd6da4a14380ef79e34bd9dff7caf46687477; be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди e8852ae29868e449fdb47eebc28f35fb80741a5f; be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди f8d420949b335a4b51d06ab276beee6b8dfdc909; be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди 5e658b9245a52d838ef93729a7bc07de8e19deb7; be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди 293a84fa40b3a1b3471c0545722724bc10973f76; be71b5cba2e6485e8959da7a9f9a44461a1bb074 преди 5b08dccecf825cbf905f348bc6ccb497507e28e2
- Linux Linux: 5.15; преди 5.15; 5.15.211 до 5.15.*; 6.1.177 до 6.1.*; 6.6.144 до 6.6.*; 6.12.95 до 6.12.*; 6.18.38 до 6.18.*; 7.1.3 до 7.1.*; от 7.2 нататък
Вид слабост
История
- 19 юли 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-63833
- https://nvd.nist.gov/vuln/detail/CVE-2026-63833
- https://git.kernel.org/stable/c/e574af95234afc3c725988bbc1fdeb46b9f386a4
- https://git.kernel.org/stable/c/2c3cd6da4a14380ef79e34bd9dff7caf46687477
- https://git.kernel.org/stable/c/e8852ae29868e449fdb47eebc28f35fb80741a5f
- https://git.kernel.org/stable/c/f8d420949b335a4b51d06ab276beee6b8dfdc909
- https://git.kernel.org/stable/c/5e658b9245a52d838ef93729a7bc07de8e19deb7
- https://git.kernel.org/stable/c/293a84fa40b3a1b3471c0545722724bc10973f76
- https://git.kernel.org/stable/c/5b08dccecf825cbf905f348bc6ccb497507e28e2