CVE-2024-42154 Information

Description

In the Linux kernel the following vulnerability has been resolved:

tcp_metrics: validate source addr length

I don’t see anything checking that TCP_METRICS_ATTR_SADDR_IPV4 is at least 4 bytes long and the policy doesn’t have an entry for this attribute at all (neither does it for IPv6 but v6 is manually validated).

Reference

https://git.kernel.org/stable/c/19d997b59fa1fd7a02e770ee0881c0652b9c32c9 https://git.kernel.org/stable/c/2a2e79dbe2236a1289412d2044994f7ab419b44c https://git.kernel.org/stable/c/cdffc358717e436bb67122bb82c1a2a26e050f98 https://git.kernel.org/stable/c/ef7c428b425beeb52b894e16f1c4b629d6cebfb6 https://git.kernel.org/stable/c/31f03bb04146c1c6df6c03e9f45401f5f5a985d3 https://git.kernel.org/stable/c/8c2debdd170e395934ac0e039748576dfde14e99 https://git.kernel.org/stable/c/3d550dd5418729a6e77fe7721d27adea7152e321 https://git.kernel.org/stable/c/66be40e622e177316ae81717aa30057ba9e61dff