medium
5.9
CWE
362 400
Advisory Published
Updated

CVE-2023-28320: Race Condition

First published: Fri May 26 2023(Updated: )

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.

Credit: CVE-2023-28319 CVE-2023-28320 CVE-2023-28321 CVE-2023-28322 support@hackerone.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.7.9
11.7.9
IBM Engineering Requirements Management DOORS Web Access<=9.7.2.7
IBM Rational DOORS Web Access<=9.7.2.7
curl<8.1.0
macOS<12.6.8
12.6.8
macOS Ventura<13.5
13.5
Curl<8.1.0
macOS>=11.0<11.7.9
macOS>=12.0<12.6.8
macOS>=13.0<13.5
IBM Data ONTAP
NetApp Clustered Data ONTAP Antivirus Connector
All of
NetApp H300S Firmware
NetApp H300S Firmware
All of
NetApp H500e Firmware
NetApp H500e Firmware
All of
NetApp H700S
NetApp H700S
All of
NetApp H410S
NetApp H410S Firmware
NetApp H300S Firmware
NetApp H300S Firmware
NetApp H500e Firmware
NetApp H500e Firmware
NetApp H700S
NetApp H700S
NetApp H410S
NetApp H410S Firmware

Remedy

https://hackerone.com/reports/1929597

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID of this issue is CVE-2023-28320.

  • What is the severity of CVE-2023-28320?

    The severity of CVE-2023-28320 is medium with a CVSS score of 5.9.

  • Which software versions are affected by this vulnerability?

    This vulnerability affects Haxx Curl versions up to 8.1.0, Apple macOS versions between 11.0 and 11.7.9, Apple macOS versions between 12.0 and 12.6.8, and Apple macOS versions between 13.0 and 13.5.

  • What is the nature of this vulnerability in curl?

    This vulnerability in curl is a denial of service vulnerability related to the way libcurl provides backends for resolving host names.

  • How can I fix this vulnerability in curl?

    To fix this vulnerability in curl, update to a version above 8.1.0 if using Haxx Curl, or update to the latest available version of Apple macOS if using any affected versions.

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