Use-after-free in Linux kernel - CVE-2023-37454
Published: November 6, 2023
Vulnerability identifier: #VU82756
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-37454
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the the udf_put_super and udf_close_lvid functions in fs/udf/super.c. A local authenticated user can trigger a use-after-free error and perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2023-37454
Install update from vendor's website.
External References
- https://syzkaller.appspot.com/bug?extid=61564e5023b7229ec85d
- https://syzkaller.appspot.com/bug?extid=26873a72980f8fa8bc55
- https://lore.kernel.org/all/00000000000056e02f05dfb6e11a@google.com/T/
- https://syzkaller.appspot.com/bug?extid=60864ed35b1073540d57
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2023-37454