CVE-2023-53032
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.