CVE-2023-37454

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-07-06 · updated 2026-06-17
Weakness: CWE-416

Description

An issue was discovered in the Linux kernel through 6.4.2. A crafted UDF filesystem image causes a use-after-free write operation in the udf_put_super and udf_close_lvid functions in fs/udf/super.c. NOTE: the suse.com reference has a different perspective about this.

Affected products

Linux kernel: through 6.4.2

References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2023-37454
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6f861765464f43a71462d52026fbddfc858239a5
https://lore.kernel.org/all/00000000000056e02f05dfb6e11a%40google.com/T/
https://syzkaller.appspot.com/bug?extid=26873a72980f8fa8bc55
https://syzkaller.appspot.com/bug?extid=60864ed35b1073540d57
https://syzkaller.appspot.com/bug?extid=61564e5023b7229ec85d
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2023-37454
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6f861765464f43a71462d52026fbddfc858239a5
https://lore.kernel.org/all/00000000000056e02f05dfb6e11a%40google.com/T/
https://syzkaller.appspot.com/bug?extid=26873a72980f8fa8bc55
https://syzkaller.appspot.com/bug?extid=60864ed35b1073540d57
https://syzkaller.appspot.com/bug?extid=61564e5023b7229ec85d

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