CVE-2024-49571
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
In the Linux kernel's net/smc module, when receiving a proposal message on the server, the fields iparea_offset and ipv6_prefixes_cnt come from the remote client and are not fully trusted. If iparea_offset exceeds the maximum value, it may lead to accessing an incorrect address and system crash. The patch adds validation of these fields before use.
Risk Assessment
The organization may experience system crashes due to a crafted message from a remote client, potentially leading to service disruption and availability issues.
Recommendation
Apply a Linux kernel update containing the fix for CVE-2024-49571, which adds validation of iparea_offset and ipv6_prefixes_cnt before use.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net/smc: check iparea_offset and ipv6_prefixes_cnt when receiving proposal msg When receiving proposal msg in server, the field iparea_offset and the field ipv6_prefixes_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field iparea_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks iparea_offset and ipv6_prefixes_cnt before using them.