netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()
On links faster than ~34 Gbps, where byte rate may exceed 2^32-1
(~ 4.3 GBps), the comparison result becomes incorrect because the
truncated value no longer reflects the actual estimator rate.
Fix by changing the local variables to u64.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/444853cd438201007da5359821adcc2995655ab1https://git.kernel.org/stable/c/5da915fc159c6b4091669447588e520183969ccahttps://git.kernel.org/stable/c/77e9ba358d63fe2eb03c90d29ea85651d95cf2e6https://git.kernel.org/stable/c/905a927b2e6fec7b174e9e5644d271047b61378fhttps://git.kernel.org/stable/c/a3ba938f45cb00f6bf49d3aa3647df9b017f5f08https://git.kernel.org/stable/c/bab305dd769d78074adca73505cc2509e1206bf2https://git.kernel.org/stable/c/d5cc4c12a4b90bf099199c3c49ecda7e694f2a2bhttps://git.kernel.org/stable/c/e702f6dd5d21e331f55fd9168c0210542008546d