cve-2023-28320
Vulnerability from cvelistv5
Published
2023-05-26 00:00
Modified
2025-01-15 15:59
Summary
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
support@hackerone.comhttp://seclists.org/fulldisclosure/2023/Jul/47Mailing List, Third Party Advisory
support@hackerone.comhttp://seclists.org/fulldisclosure/2023/Jul/48Mailing List, Third Party Advisory
support@hackerone.comhttp://seclists.org/fulldisclosure/2023/Jul/52Mailing List, Third Party Advisory
support@hackerone.comhttps://hackerone.com/reports/1929597Exploit, Patch, Third Party Advisory
support@hackerone.comhttps://security.gentoo.org/glsa/202310-12Third Party Advisory
support@hackerone.comhttps://security.netapp.com/advisory/ntap-20230609-0009/Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT213843Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT213844Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT213845Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Jul/47Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Jul/48Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Jul/52Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1929597Exploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202310-12Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230609-0009/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT213843Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT213844Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT213845Third Party Advisory
Impacted products
Vendor Product Version
n/a https://github.com/curl/curl Version: Fixed in 8.1.0
Show details on NVD website


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}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.