7.1

CVE-2023-4389

Kernel: btrfs: double free in btrfs_get_root_ref()

A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.7 < 5.10.112
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.35
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.4
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.164
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
secalert@redhat.com 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-415 Double Free

The product calls free() twice on the same memory address.

https://access.redhat.com/security/cve/CVE-2023-4389
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219271
Third Party Advisory
Issue Tracking
https://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com/
Patch
Vendor Advisory