Multiple vulnerabilities in cURL

Published: 2024-07-24

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-6874 CVE-2024-6197
CWE-ID	CWE-125 CWE-415
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	cURL Client/Desktop applications / Other client software
Vendor	curl.haxx.se

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU94716

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-6874

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the curl_url_get() function when parsing IDN URLs. A remote attacker can pass a specially crafted URL to the application, trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

cURL: 8.8.0

CPE2.3

cpe:2.3:a:curl_haxx_se:curl:8.8.0:*:*:*:*:*:*:*

External links

http://curl.se/docs/CVE-2024-6874.json
http://curl.se/docs/CVE-2024-6874.html
http://hackerone.com/reports/2604391
http://www.openwall.com/lists/oss-security/2024/07/24/2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Double free

EUVDB-ID: #VU94715

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-6197

CWE-ID: CWE-415 - Double Free