CVE-2024-11407: 
gRPC vulnerability analysis and mitigation

A denial of service vulnerability through data corruption exists in gRPC-C++ (CVE-2024-11407). The vulnerability affects gRPC-C++ servers with transmit zero copy enabled through the channel arg GRPCARGTCPTXZEROCOPY_ENABLED. The issue was discovered and disclosed on November 26, 2024 (NVD).

The vulnerability occurs when data sent by the application may be corrupted before transmission over the network, leading the receiver to receive an incorrect set of bytes causing RPC requests to fail. The issue is related to incorrect calculation (CWE-682). The vulnerability has been assigned a CVSS v4.0 Base Score of 6.9 (Medium) with the vector string CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/S:N/AU:N/R:A/RE:L/U:Green (NVD).

When exploited, this vulnerability can cause denial of service through data corruption in gRPC-C++ servers. The data corruption occurs during transmission, causing RPC requests to fail, which can disrupt normal service operations (Debian).

The vulnerability has been fixed in commit e9046b2bbebc0cb7f5dc42008f807f6c7e98e791 (v1.68.0-pre1). Users are recommended to upgrade past this commit to mitigate the vulnerability. The fix ensures that the iov_base pointers point to the right address (GitHub).