Vulnerability Report

CVE-2024-6874

Title: Haxx Libcurl Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2024-6874.

CWE Category CWE-125
Published Date Jul 24, 2024
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 4.3 CVSS v3.1
Exploit Probability (EPSS)
0.99%

Vulnerability Summary

CVE-2024-6874: libcurl's URL API function [curl_url_get()](https://curl.se/libcurl/c/curl_url_get.html) offers punycode conversions, to and from IDN. Asking to convert a name that is exactly 256 bytes, libcurl ends up reading outside of a stack based buffer when built to use the *macidn* IDN backend. The conversion function then fills up the provided buffer exactly - but does not null terminate the string. This flaw can lead to stack contents accidently getting returned as part of the converted string.

Impacted Vendors

H
haxx 1
L
libcurl 1

Reference Links

http://www.openwall.com/lists/oss-security/2024/07/24/2 https://curl.se/docs/CVE-2024-6874.html https://curl.se/docs/CVE-2024-6874.json https://hackerone.com/reports/2604391 http://www.openwall.com/lists/oss-security/2024/07/24/2 https://curl.se/docs/CVE-2024-6874.html https://curl.se/docs/CVE-2024-6874.json https://hackerone.com/reports/2604391 https://security.netapp.com/advisory/ntap-20240822-0004/
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity LOW
3.1
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2024-6874 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Stack

No specific products linked.