Loading HuntDB...
Hunt
Vulnerability Intelligence by wss.sh
Home Daily Briefings High Impact CVEs Recent Exploits KEV Catalog GitHub Advisories Latest Updates Security News
Sign In Sign Up

CVE-2023-28320

UNKNOWN
Published 2023-05-26T00:00:00
Actions:

Expert Analysis

Professional remediation guidance

Get tailored security recommendations from our analyst team for CVE-2023-28320. We'll provide specific mitigation strategies based on your environment and risk profile.

CVSS Score

V3.1
5.9
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.006
probability
of exploitation in the wild

There is a 0.6% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.695
Higher than 69.5% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-c8wj-435x-f2cc

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-28320
WEB https://hackerone.com/reports/1929597
WEB https://security.gentoo.org/glsa/202310-12
WEB https://security.netapp.com/advisory/ntap-20230609-0009
WEB https://support.apple.com/kb/HT213843
WEB https://support.apple.com/kb/HT213844
WEB https://support.apple.com/kb/HT213845
WEB http://seclists.org/fulldisclosure/2023/Jul/47
WEB http://seclists.org/fulldisclosure/2023/Jul/48
WEB http://seclists.org/fulldisclosure/2023/Jul/52

Advisory provided by GitHub Security Advisory Database. Published: May 26, 2023, Modified: April 4, 2024

References

https://hackerone.com/reports/1929597
https://security.netapp.com/advisory/ntap-20230609-0009/
https://support.apple.com/kb/HT213843
https://support.apple.com/kb/HT213844
https://support.apple.com/kb/HT213845
http://seclists.org/fulldisclosure/2023/Jul/52
http://seclists.org/fulldisclosure/2023/Jul/48
http://seclists.org/fulldisclosure/2023/Jul/47
https://security.gentoo.org/glsa/202310-12
Published: 2023-05-26T00:00:00
Last Modified: 2025-01-15T15:59:07.016Z
Copied to clipboard!