PT-2023-3565 · Linux+2 · Linux Kernel+2
Syzbot
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Publicado
2023-07-06
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Atualizado
2026-03-14
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CVE-2023-37454
CVSS v3.1
5.5
Média
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions through 6.4.2
Description
An issue in the Linux kernel causes a use-after-free write operation in the
udf put super and udf close lvid functions in fs/udf/super.c when a crafted UDF filesystem image is used. This is related to the reuse of previously freed memory. Exploitation of this issue may allow an attacker to impact the availability of protected information.Recommendations
For Linux kernel versions through 6.4.2, as a temporary workaround, consider disabling the
udf close lvid() function until a patch is available. Restrict access to the vulnerable module fs/udf/super.c to minimize the risk of exploitation. Avoid using crafted UDF filesystem images until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Use After Free
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Produtos afetados
Alt Linux
Debian
Linux Kernel