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libblockdev: fix CVE-2025-6019

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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.

Refer:
https://cdn2.qualys.com/2025/06/17/suse15-pam-udisks-lpe.txt

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Changqing Li
2025-07-03 14:39:18 +08:00
committed by Armin Kuster
parent 32200384c7
commit 14b3caec6a
2 changed files with 32 additions and 0 deletions
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meta-oe/recipes-extended/libblockdev/libblockdev_3.2.1.bb
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@@ -14,6 +14,7 @@ DEPENDS = "autoconf-archive-native glib-2.0 kmod udev libnvme"
SRC_URI = "git://github.com/storaged-project/libblockdev;branch=3.2.x-branch;protocol=https \
file://0001-fix-pythondir-for-multilib-when-cross-compiling.patch \
file://CVE-2025-6019.patch \
"
SRCREV = "b829b60d9ff049abb190f09a3b9a5fac648cd5a3"
S = "${WORKDIR}/git"