CVE-2024-34952

taurusxin ncmdump v1.3.2 was discovered to contain a segmentation violation via the NeteaseCrypt::FixMetadata() function at /src/ncmcrypt.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted .ncm file.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Potential Mitigations

References

• https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/dos_FixMetadata.assets/debug-coredump.png
• https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/dos_FixMetadata.md
• https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/poc/I1DWE0~U
• https://github.com/Helson-S/FuzzyTesting/tree/master/ncmdump/dos_FixMetadata
• https://github.com/Helson-S/FuzzyTesting/tree/master/ncmdump/dos_FixMetadata/poc
• https://github.com/taurusxin/ncmdump/issues/18
• https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/dos_FixMetadata.assets/debug-coredump.png
• https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/dos_FixMetadata.md
• https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/poc/I1DWE0~U
• https://github.com/Helson-S/FuzzyTesting/tree/master/ncmdump/dos_FixMetadata
• https://github.com/Helson-S/FuzzyTesting/tree/master/ncmdump/dos_FixMetadata/poc
• https://github.com/taurusxin/ncmdump/issues/18