Answer in brief
CVE-2023-53032 records a Medium severity (CVSS 5.5) vulnerability in netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 3.7 | Not reported |
| Linux/Linuxgeneric | >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <e137d9bb26bd85ce07323a38e38ceb0b160db841 || >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f || >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <feefb33eefa166fc3e0fd17547b0bc0cb3baced9 || >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <4e6a70fd840400e3a2e784a6673968a3eb2431c0 || >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <511cf17b2447fc41cfef8d71936e1fa53e395c1e || >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <e88865876d47c790be0d5e23973499d75d034364 || >=b9fed748185a96b7cfe74afac4bd228e8af16f01 <9ea4b476cea1b7d461d16dda25ca3c7e616e2d15 | e137d9bb26bd85ce07323a38e38ceb0b160db841, dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f, feefb33eefa166fc3e0fd17547b0bc0cb3baced9, 4e6a70fd840400e3a2e784a6673968a3eb2431c0, 511cf17b2447fc41cfef8d71936e1fa53e395c1e, e88865876d47c790be0d5e23973499d75d034364, 9ea4b476cea1b7d461d16dda25ca3c7e616e2d15 |
Published upstream
Mar 27, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.