CVE-2023-38545
Vulnerability from cvelistv5
Published
2023-10-18 03:52
Modified
2024-10-17 21:16
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that host name can be is 255 bytes. If the host name is detected to be longer, curl switches to local name resolving and instead passes on the resolved address only. Due to this bug, the local variable that means "let the host resolve the name" could get the wrong value during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target buffer instead of copying just the resolved address there. The target buffer being a heap based buffer, and the host name coming from the URL that curl has been told to operate with.
References
support@hackerone.comhttp://seclists.org/fulldisclosure/2024/Jan/34Mailing List, Third Party Advisory
support@hackerone.comhttp://seclists.org/fulldisclosure/2024/Jan/37Mailing List, Third Party Advisory
support@hackerone.comhttp://seclists.org/fulldisclosure/2024/Jan/38Mailing List, Third Party Advisory
support@hackerone.comhttps://curl.se/docs/CVE-2023-38545.htmlPatch, Third Party Advisory
support@hackerone.comhttps://forum.vmssoftware.com/viewtopic.php?f=8&t=8868
support@hackerone.comhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/Mailing List, Third Party Advisory
support@hackerone.comhttps://security.netapp.com/advisory/ntap-20231027-0009/Third Party Advisory
support@hackerone.comhttps://security.netapp.com/advisory/ntap-20240201-0005/Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT214036Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT214057Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT214058Third Party Advisory
support@hackerone.comhttps://support.apple.com/kb/HT214063Third Party Advisory
support@hackerone.comhttps://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jan/34Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jan/37Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jan/38Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://curl.se/docs/CVE-2023-38545.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://forum.vmssoftware.com/viewtopic.php?f=8&t=8868
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231027-0009/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240201-0005/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT214036Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT214057Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT214058Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT214063Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/Patch, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/UTsweetyfish/CVE-2023-38545
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/bcdannyboy/CVE-2023-38545
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/dbrugman/CVE-2023-38545-POC
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20231027-0009/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20240201-0005/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.apple.com/kb/HT214036\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.apple.com/kb/HT214057\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.apple.com/kb/HT214058\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://support.apple.com/kb/HT214063\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/UTsweetyfish/CVE-2023-38545\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"},{\"url\":\"https://github.com/bcdannyboy/CVE-2023-38545\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"},{\"url\":\"https://github.com/dbrugman/CVE-2023-38545-POC\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}"
  }
}


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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.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • 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.