CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, при специфични условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can exploit this via a Time-of-Check Time-of-Use (TOCTOU) race condition and exchange the socket pathname with a symbolic link pointing to an arbitrary root-owned file (such as /etc/pam.d/su). The daemon subsequently follows the symlink and changes the ownership of the targeted root-owned file to the attacker's user ID. This allows an authenticated local attacker to modify critical system files, leading to a full local privilege escalation to root.
Засегнати продукти
- GNOME gvfs: 1.48.1 преди 1.62.0; 1.48.1 преди 1.60.3; 1.48.1 преди 1.58.5
- Red Hat Red Hat Enterprise Linux 10: от 0:1.54.4-4.el10_2.1 нататък
- Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support: от 0:1.54.4-2.el10_0.2 нататък
- Red Hat Red Hat Enterprise Linux 9: от 0:1.48.1-8.el9_8.1 нататък
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: от 0:1.48.1-4.el9_2.1 нататък
- Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions: от 0:1.48.1-4.el9_4.1 нататък
- Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support: от 0:1.48.1-6.el9_6.1 нататък
- Red Hat Red Hat Enterprise Linux 6
- Red Hat Red Hat Enterprise Linux 7
- Red Hat Red Hat Enterprise Linux 8
Вид слабост
История
- 10 септември 2026 Публикувано
Други уязвимости в GNOME gvfs
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-88924
- https://nvd.nist.gov/vuln/detail/CVE-2026-88924
- https://access.redhat.com/errata/RHSA-2026:73998
- https://access.redhat.com/errata/RHSA-2026:74370
- https://access.redhat.com/errata/RHSA-2026:85939
- https://access.redhat.com/errata/RHSA-2026:85941
- https://access.redhat.com/errata/RHSA-2026:85942
- https://access.redhat.com/errata/RHSA-2026:85944
- https://access.redhat.com/security/cve/CVE-2026-88924
- https://bugzilla.redhat.com/show_bug.cgi?id=2531456
- https://gitlab.gnome.org/GNOME/gvfs/-/issues/875