CVE-2023-53032

CVE-2023-53032: vulnerability in Linux

netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.

Published · Updated

3Vexday Risk Score

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

ssvc Trackepss 0.2%
exploitation probability
0.2%top 91% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1ehttps://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14fhttps://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9