CVE-2025-6019
A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allow_active" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an "allow_active" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation. However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system.
Vendor
-
Product
-
CWE
Yayın Tarihi
2025-06-19 12:15:19
Güncelleme
2025-07-10 14:15:26
Source Identifier
secalert@redhat.com
KEV Date Added
-
Kategoriler
Referanslar
https://access.redhat.com/errata/RHSA-2025:10796
https://access.redhat.com/errata/RHSA-2025:9320
https://access.redhat.com/errata/RHSA-2025:9321
https://access.redhat.com/errata/RHSA-2025:9322
https://access.redhat.com/errata/RHSA-2025:9323
https://access.redhat.com/errata/RHSA-2025:9324
https://access.redhat.com/errata/RHSA-2025:9325
https://access.redhat.com/errata/RHSA-2025:9326
https://access.redhat.com/errata/RHSA-2025:9327
https://access.redhat.com/errata/RHSA-2025:9328
https://access.redhat.com/errata/RHSA-2025:9878
https://access.redhat.com/security/cve/CVE-2025-6019
https://bugzilla.redhat.com/show_bug.cgi?id=2370051
https://cdn2.qualys.com/2025/06/17/suse15-pam-udisks-lpe.txt
http://www.openwall.com/lists/oss-security/2025/06/17/5
http://www.openwall.com/lists/oss-security/2025/06/17/6
http://www.openwall.com/lists/oss-security/2025/06/18/1
https://lists.debian.org/debian-lts-announce/2025/06/msg00018.html
https://news.ycombinator.com/item?id=44325861
https://www.bleepingcomputer.com/news/linux/new-linux-udisks-flaw-lets-attackers-get-root-on-major-linux-distros/