CVE-2023-53032
Last modified
CVE-2023-53032 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 3.7, < 4.14.303 | — |
| Linux | Linux Kernel | >= 4.15, < 4.19.270 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.229 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.164 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.89 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.7 | — |
| Linux | Linux Kernel | 6.2 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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