Detections
Analytics
CVE-2023-53032
medium
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at the next step. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
References
https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9
https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364
https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841
https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f
https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15
https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1e
https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0