CVE-2023-28320
Medium
Description
A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Haxx Curl
PublishedMay 26, 2023
First seenMay 26, 2023
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- haxx curl8.1.0 or later
- apple macos11.7.9, 12.6.8, 13.5 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| haxx curl | v < 8.1.0 | 8.1.0 |
| apple macos | 11.0 ≤ v < 11.7.9, 12.0 ≤ v < 12.6.8, 13.0 ≤ v < 13.5 | 11.7.9, 12.6.8, 13.5 |
| netapp clustered_data_ontap | No range specified | — |
| netapp ontap_antivirus_connector | No range specified | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
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