CVE - CVE-2024-43845

CVE-ID
CVE-2024-43845	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: udf: Fix bogus checksum computation in udf_rename() Syzbot reports uninitialized memory access in udf_rename() when updating checksum of '..' directory entry of a moved directory. This is indeed true as we pass on-stack diriter.fi to the udf_update_tag() and because that has only struct fileIdentDesc included in it and not the impUse or name fields, the checksumming function is going to checksum random stack contents beyond the end of the structure. This is actually harmless because the following udf_fiiter_write_fi() will recompute the checksum from on-disk buffers where everything is properly included. So all that is needed is just removing the bogus calculation.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/27ab33854873e6fb958cb074681a0107cc2ecc4c URL:https://git.kernel.org/stable/c/27ab33854873e6fb958cb074681a0107cc2ecc4c MISC:https://git.kernel.org/stable/c/40d7b3ed52449d36143bab8d3e70926aa61a60f4 URL:https://git.kernel.org/stable/c/40d7b3ed52449d36143bab8d3e70926aa61a60f4 MISC:https://git.kernel.org/stable/c/9c439311c13fc6faab1921441165c9b8b500c83b URL:https://git.kernel.org/stable/c/9c439311c13fc6faab1921441165c9b8b500c83b MISC:https://git.kernel.org/stable/c/c996b570305e7a6910c2ce4cdcd4c22757ffe241 URL:https://git.kernel.org/stable/c/c996b570305e7a6910c2ce4cdcd4c22757ffe241 MISC:https://git.kernel.org/stable/c/fe2ead240c31e8d158713beca9d0681a6e6a53ab URL:https://git.kernel.org/stable/c/fe2ead240c31e8d158713beca9d0681a6e6a53ab
Assigning CNA
kernel.org
Date Record Created
20240817	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240817)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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