Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.7, < 4.14.303 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0Patch
- https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1ePatch
- https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15Patch
- https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14fPatch
- https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841Patch
- https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364Patch
- https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9Patch
FAQ
What is CVE-2023-53032?
CVE-2023-53032 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 net...
How severe is CVE-2023-53032?
CVE-2023-53032 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53032?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.