CVE-2024-49568critical

CVE-2024-49568: critical vulnerability in Linux

net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg

Published · Updated

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 0.6%
exploitation probability
0.6%top 54% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg When receiving proposal msg in server, the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbfhttps://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6chttps://git.kernel.org/stable/c/49798283fce4c1a24fb1ba4c7c39127739535571https://git.kernel.org/stable/c/690b9a8db9460d065785548e43fd6a02d247c1b7https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdfhttps://git.kernel.org/stable/c/9cc0170ae646876aa5de2f0cad3066ce53e86f27