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CVE-2023-28320

Published: May 26, 2023Updated: Jan 15, 2025 Sources: CVE List NVD BDU csafCWE-400
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
2.7%
Top 16.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400CWE-362

Affected Products

curlhaxxOSS Libraries
macosapple
On-premOS
Operating Systems / unix-bsd
clustered data ontapnetappHardware Firmware
ontap antivirus connectornetappHardware Firmware
h300s firmwarenetappHardware Firmware
haxxoss-projectSEOSS Librariesaka haxx.se
applecommercialUSMobile Appsaka apple inc., apple computer
netappcommercialUSHardware Firmware
and 21 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Privilege Escalation
View detailed technique mapping

References

http://seclists.org/fulldisclosure/2023/Jul/47
seclists.org
http://seclists.org/fulldisclosure/2023/Jul/48
seclists.org
http://seclists.org/fulldisclosure/2023/Jul/52
seclists.org
and 28 more references View all →

Timeline

Published
May 26, 2023
Last Updated
Jan 15, 2025

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