CVE-2023-28320
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-400 |
| Vendor | n/a |
| Product | https://github.com/curl/curl |
| Published | May 26, 2023 |
| Last Updated | Jan 15, 2025 |
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Affected Versions
n/a / https://github.com/curl/curl
Fixed in 8.1.0
References
hackerone.com: https://hackerone.com/reports/1929597 security.netapp.com: https://security.netapp.com/advisory/ntap-20230609-0009/ support.apple.com: https://support.apple.com/kb/HT213843 support.apple.com: https://support.apple.com/kb/HT213844 support.apple.com: https://support.apple.com/kb/HT213845 seclists.org: http://seclists.org/fulldisclosure/2023/Jul/52 seclists.org: http://seclists.org/fulldisclosure/2023/Jul/48 seclists.org: http://seclists.org/fulldisclosure/2023/Jul/47 security.gentoo.org: https://security.gentoo.org/glsa/202310-12