CVE-2023-52631 Affecting kernel-64kb-devel package, versions <6.4.0-150600.23.7.3
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Test your applications- Snyk ID SNYK-SLES156-KERNEL64KBDEVEL-7711093
- published 20 Aug 2024
- disclosed 25 Jun 2024
Introduced: 25 Jun 2024
CVE-2023-52631 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-64kb-devel to version 6.4.0-150600.23.7.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-64kb-devel package and not the kernel-64kb-devel package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix an NULL dereference bug
The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.
References
- https://www.suse.com/security/cve/CVE-2023-52631.html
- https://bugzilla.suse.com/1222264
- https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2
- https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b
- https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c
- https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6
- https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7