Race Condition Affecting curl package, versions <8.1.0-r0
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Test your applications- Snyk ID SNYK-ALPINE316-CURL-5561319
- published 17 May 2023
- disclosed 26 May 2023
How to fix?
Upgrade Alpine:3.16
curl
to version 8.1.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream curl
package and not the curl
package as distributed by Alpine
.
See How to fix?
for Alpine:3.16
relevant fixed versions and status.
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.
References
- https://hackerone.com/reports/1929597
- https://security.netapp.com/advisory/ntap-20230609-0009/
- https://support.apple.com/kb/HT213843
- https://support.apple.com/kb/HT213844
- https://support.apple.com/kb/HT213845
- http://seclists.org/fulldisclosure/2023/Jul/47
- http://seclists.org/fulldisclosure/2023/Jul/48
- http://seclists.org/fulldisclosure/2023/Jul/52
- https://security.gentoo.org/glsa/202310-12