CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel's libceph component allows for an uninitialized memory read due to improper handling of message boundaries in the handle_get_version_reply() function. This could lead to potential information leakage from stale data in the buffer, impacting systems that utilize the Ceph distributed storage system. Organizations using affected Linux distributions with Ceph should prioritize patching this vulnerability to mitigate risks associated with memory disclosure.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: libceph: bound get_version reply decode to front len handle_get_version_reply() uses msg->front_alloc_len as the decode boundary for MON_GET_VERSION_REPLY. That is the size of the reused reply buffer, not the number of bytes actually received. A truncated reply can therefore pass ceph_decode_need() and decode the second u64 from stale tail bytes left in the buffer by an earlier message, causing an uninitialized memory read. Use msg->front.iov_len as the receive-side decode boundary, matching other libceph reply handlers and limiting decoding to the bytes that were actually read from the wire.