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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- network
- Complexity
- high
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- none
- Availability
- high
- Weaknesses
- CWE-400CWE-362CWE-400
Metadata
- Primary Vendor
- HAXX
- Published
- 5/26/2023
- Last Modified
- 1/15/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
haxx : curlapple : macosapple : macosapple : macosnetapp : clustered_data_ontapnetapp : ontap_antivirus_connectornetapp : h300s_firmwarenetapp : h500s_firmwarenetapp : h700s_firmwarenetapp : h410s_firmware
AI-Powered Remediation
Generate remediation guidance or a C-suite brief for this vulnerability.