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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2023-05-26T00:00:00

Updated: 2024-08-02T12:38:24.752Z

Reserved: 2023-03-14T00:00:00

Link: CVE-2023-28320

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-05-26T21:15:15.937

Modified: 2023-10-20T18:42:42.793

Link: CVE-2023-28320

cve-icon Redhat

Severity : Low

Publid Date: 2023-05-17T00:00:00Z

Links: CVE-2023-28320 - Bugzilla