CVE-2023-28320

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Summary

CVECVE-2023-28320
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-05-26 21:15:15 UTC
Updated2026-10-23 23:10:00 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 5.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-400 | CWE-362 | CWE-400 Denial of Service (CWE-400)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Apple Macos All All All All
Application Haxx Curl All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Https//github.com/curl/curl affected Fixed in 8.1.0 Not specified

References

ReferenceSourceLinkTags
May 2023 cURL/libcURL Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
Full Disclosure: APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9 af854a3a-2127-422b-91ae-364da2661108 seclists.org Mailing List, Third Party Advisory
Full Disclosure: APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8 af854a3a-2127-422b-91ae-364da2661108 seclists.org Mailing List, Third Party Advisory
About the security content of macOS Monterey 12.6.8 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Third Party Advisory
HackerOne af854a3a-2127-422b-91ae-364da2661108 hackerone.com Exploit, Patch, Third Party Advisory
About the security content of macOS Big Sur 11.7.9 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Third Party Advisory
Full Disclosure: APPLE-SA-2023-07-24-4 macOS Ventura 13.5 af854a3a-2127-422b-91ae-364da2661108 seclists.org Mailing List, Third Party Advisory
About the security content of macOS Ventura 13.5 - Apple Support af854a3a-2127-422b-91ae-364da2661108 support.apple.com Third Party Advisory
curl: Multiple Vulnerabilities (GLSA 202310-12) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 182914 Debian Security Update for curl (CVE-2023-28320)
  • 378687 Apple macOS Ventura 13.5 Not Installed (HT213843)
  • 378688 Apple macOS Monterey 12.6.8 Not Installed (HT213844)
  • 378689 Apple macOS Big Sur 11.7.9 Not Installed (HT213845)
  • 503014 Alpine Linux Security Update for curl
  • 691172 Free Berkeley Software Distribution (FreeBSD) Security Update for curl (a4f8bb03-f52f-11ed-9859-080027083a05)
  • 710772 Gentoo Linux curl Multiple Vulnerabilities (GLSA 202310-12)
  • 754020 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:2226-1)
  • 754021 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:2228-1)
  • 754022 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:2227-1)
  • 754069 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:2225-1)
  • 907178 Common Base Linux Mariner (CBL-Mariner) Security Update for curl (26793-1)
  • 907405 Common Base Linux Mariner (CBL-Mariner) Security Update for rust (26813-1)
  • 907643 Common Base Linux Mariner (CBL-Mariner) Security Update for mysql (26809-1)

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