high
7.5
CWE
416
Advisory Published
CVE Published
Updated

CVE-2023-28319: Use After Free

First published: Wed May 10 2023(Updated: )

A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.

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

Affected SoftwareAffected VersionHow to fix
Haxx Curl<8.1.0
redhat/curl<8.1.0
8.1.0
Apple macOS Ventura<13.5
13.5
Apple macOS Big Sur<11.7.9
11.7.9
Apple macOS Monterey<12.6.8
12.6.8
IBM IBM® Engineering Requirements Management DOORS<=9.7.2.7
IBM IBM® Engineering Requirements Management DOORS Web Access<=9.7.2.7
Apple macOS>=11.0<11.7.9
Apple macOS>=12.0<12.6.8
Apple macOS>=13.0<13.5
NetApp Clustered Data ONTAP
Netapp Ontap Antivirus Connector
Netapp H300s Firmware
Netapp H300s
Netapp H500s Firmware
Netapp H500s
Netapp H700s Firmware
Netapp H700s
Netapp H410s Firmware
Netapp H410s

Remedy

https://hackerone.com/reports/1913733

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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-2023-28319.

  • What is the severity of CVE-2023-28319?

    The severity of CVE-2023-28319 is high.

  • Which software is affected by CVE-2023-28319?

    The software affected by CVE-2023-28319 includes Haxx Curl, Apple macOS (version 11.0 to 11.7.9), Apple macOS (version 12.0 to 12.6.8), Apple macOS (version 13.0 to 13.5), Apple macOS Big Sur, Apple macOS Monterey.

  • How does CVE-2023-28319 affect libcurl?

    CVE-2023-28319 is a use after free vulnerability in libcurl that occurs when verifying an SSH server's public key using a SHA 256 hash.

  • Where can I find more information about CVE-2023-28319?

    You can find more information about CVE-2023-28319 at the following references: [HackerOne report](https://hackerone.com/reports/1913733), [Seclist 1](http://seclists.org/fulldisclosure/2023/Jul/47), [Seclist 2](http://seclists.org/fulldisclosure/2023/Jul/48).

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