#VU11111 Heap-based buffer overflow in cURL - CVE-2018-1000120

Vulnerability identifier: #VU11111

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-1000120

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cURL
Client/Desktop applications / Other client software

Vendor: curl.haxx.se

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to heap-based buffer overflow. A remote attacker that can control the paths that curl uses for FTP can create specially crafted path names containing the control characters '%00', trigger memory corruption and execute arbitrary code.

Mitigation
Update to version 7.59.0.

Vulnerable software versions

cURL: 7.10.3 - 7.58.0

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External links
https://curl.haxx.se/docs/adv_2018-9cd6.html

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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.